How To Get Radical Answers On Ti-84 Plus?

How to Get Radical Answers on a TI-84 Plus

The TI-84 Plus is a popular graphing calculator used by students in high school and college. It can perform a variety of calculations, including finding the square root of a number. This can be done using the built-in radical function.

To get the radical answer on a TI-84 Plus, follow these steps:

1. Press the MATH button.
2. Select Radical.
3. Enter the number you want to find the square root of.
4. Press the ENTER button.

The calculator will display the square root of the number.

For example, to find the square root of 9, you would follow these steps:

1. Press the MATH button.
2. Select Radical.
3. Enter 9.
4. Press the ENTER button.

The calculator will display the answer, 3.

The radical function can also be used to find the cube root, fourth root, and nth root of a number. To do this, simply select the appropriate root from the Radical menu.

How To Get Radical Answers On Ti-84 Plus?

| Step | Description | Example |
|—|—|—|
| Press the 2nd key and the [+] key at the same time. | This will open the Math menu. |
| Use the arrow keys to scroll down to the [x] function. |
| Press the Enter key. | This will enter the [x] function into the calculator. |
| Enter the number you want to find the square root of. |
| Press the Enter key. | The calculator will display the square root of the number you entered. |

The TI-84 Plus is a graphing calculator that is used by students in high school and college. It is capable of performing a variety of mathematical operations, including square roots. This tutorial will show you how to enter and evaluate square roots on the TI-84 Plus.

Entering Square Roots

To enter a square root symbol on the TI-84 Plus, press the 2nd button and then the $\sqrt{}$ button. This will insert the square root symbol into the calculator’s display.

To enter a negative square root, press the 2nd button and then the $\pm$ button. This will insert the negative sign before the square root symbol.

To enter a fractional square root, press the 2nd button and then the $\frac{1}{x}$ button. This will insert the fraction bar and the 1 in the numerator. You can then enter the value of the denominator.

Evaluating Square Roots

There are three ways to evaluate a square root on the TI-84 Plus:

• Using the calculator’s built-in functions
• Using the calculator’s graphing capabilities
• Using the calculator’s table capabilities

Using the calculator’s built-in functions

The TI-84 Plus has a built-in function called $\sqrt{}$ that can be used to evaluate square roots. To use this function, enter the value of the number whose square root you want to find and then press the $\sqrt{}$ button. The calculator will display the square root of the number.

For example, to evaluate the square root of 4, you would enter 4 and then press the $\sqrt{}$ button. The calculator would display the answer 2.

Using the calculator’s graphing capabilities

You can also use the TI-84 Plus’s graphing capabilities to evaluate square roots. To do this, graph the equation $y=\sqrt{x}$. The x-intercept of the graph will be the square root of the value of y.

For example, to graph the square root of 4, you would enter the equation $y=\sqrt{x}$ into the calculator’s Y= menu. Then, you would press the graph button. The graph of the equation would appear on the calculator’s screen. The x-intercept of the graph would be 2, which is the square root of 4.

Using the calculator’s table capabilities

You can also use the TI-84 Plus’s table capabilities to evaluate square roots. To do this, enter the value of the number whose square root you want to find into the L1 column of the table. Then, press the 2nd button and then the $\Delta x$ button. This will insert the $\Delta x$ symbol into the L2 column of the table.

Next, enter the value of the increment by which you want to increase the value of the number in the L1 column. Finally, press the table button. The calculator will display the values of the number in the L1 column and the square roots of the numbers in the L2 column.

This tutorial has shown you how to enter and evaluate square roots on the TI-84 Plus. By following these steps, you will be able to use the calculator to perform square root calculations quickly and easily.

Here are some additional resources that you may find helpful:

• [TI-84 Plus Manual](https://education.ti.com/en/us/products/calculators/ti-84-plus-family/downloads)
• [TI-84 Plus Tutorials](https://education.ti.com/en/us/products/calculators/ti-84-plus-family/tutorials)
• [TI-84 Plus Forums](https://education.ti.com/en/us/products/calculators/ti-84-plus-family/forums)

3. Solving Equations Involving Square Roots

The TI-84 Plus has a number of built-in functions that can be used to solve equations involving square roots.

• The SQRT function can be used to find the square root of a number. For example, to find the square root of 9, you would enter the following into the calculator:

Y=SQRT(9)

The calculator will then display the answer, which is 3.

• The ABS function can be used to find the absolute value of a number. The absolute value of a number is the positive value of that number. For example, to find the absolute value of -9, you would enter the following into the calculator:

Y=ABS(-9)

The calculator will then display the answer, which is 9.

• The NEG function can be used to negate a number. Negating a number means multiplying it by -1. For example, to negate 9, you would enter the following into the calculator:

Y=NEG(9)

The calculator will then display the answer, which is -9.

• The EXP function can be used to raise a number to a power. For example, to raise 2 to the power of 3, you would enter the following into the calculator:

Y=EXP(3)

The calculator will then display the answer, which is 8.

• The LOG function can be used to find the logarithm of a number. The logarithm of a number is the exponent to which a base number must be raised to equal that number. For example, to find the logarithm of 100 to the base of 10, you would enter the following into the calculator:

Y=LOG(100,10)

The calculator will then display the answer, which is 2.

Solving Equations Involving Square Roots Using the Calculator’s Built-In Functions

The TI-84 Plus can be used to solve equations involving square roots using the following steps:

1. Enter the equation into the calculator.
2. Use the SQRT function to find the square root of any terms that contain square roots.
3. Use the ABS function to find the absolute value of any terms that contain negative numbers.
4. Use the NEG function to negate any terms that need to be negated.
5. Use the EXP function to raise any terms to a power.
6. Use the LOG function to find the logarithm of any terms.
7. Simplify the equation as much as possible.
8. Solve the equation for the variable.

Example: Solve the equation x^2 = 9 for x.

1. Enter the equation into the calculator:

Y=X^2=9

2. Use the SQRT function to find the square root of both sides of the equation:

Y=SQRT(X^2)=SQRT(9)

3. Simplify the equation:

Y=X=3

4. Therefore, the solution to the equation is x = 3.

Solving Equations Involving Square Roots Using the Calculator’s Graphing Capabilities

The TI-84 Plus can also be used to solve equations involving square roots using the following steps:

1. Graph the equation on the calculator.
2. Find the x-intercepts of the graph.
3. The x-intercepts of the graph are the solutions to the equation.

Example: Solve the equation x^2 = 9 for x.

1. Graph the equation on the calculator:

Y=X^2=9

2. Find the x-intercepts of the graph:

X=3

3. Therefore, the solution to the equation is x = 3.

Solving Equations Involving Square Roots Using the Calculator’s Table Capabilities

The TI-84 Plus can also be used to solve equations involving square roots using the following steps:

1. Enter the equation into the calculator.
2. Set the table range to include all possible solutions to the equation.
3. Press the GRAPH button to view the table.
4. The solutions to the equation will be displayed in the table.

Example: Solve the equation x^2 = 9 for x.

1. Enter the equation into the calculator:

Y=X^2=9

How do I get radical answers on a TI-84 Plus?

1. Press the MATH button.
2. Press the 2ND button.
3. Press the ROOT button.
4. Enter the number you want to find the root of.
5. Press the ENTER button.

The calculator will display the radical answer.

What is the difference between a square root and a cube root?

A square root is the number that, when multiplied by itself, gives the original number. For example, the square root of 4 is 2, because 2 * 2 = 4. A cube root is the number that, when multiplied by itself three times, gives the original number. For example, the cube root of 8 is 2, because 2 * 2 * 2 = 8.

How do I find the nth root of a number on a TI-84 Plus?

To find the nth root of a number, follow these steps:

1. Press the MATH button.
2. Press the 2ND button.
3. Press the ROOT button.
4. Enter the number you want to find the root of.
5. Enter the exponent of the root.
6. Press the ENTER button.

The calculator will display the nth root of the number.

What are some other ways to find radical answers on a TI-84 Plus?

In addition to the methods described above, you can also find radical answers on a TI-84 Plus by using the following methods:

• Using the Solver: The Solver can be used to find the roots of equations. To use the Solver, press the MATH button, press the 2ND button, and then press the SOLVE button. Enter the equation you want to solve, and then enter the values of the variables that you know. The Solver will find the value of the variable that makes the equation true.
• Using the Graphing Feature: The Graphing Feature can be used to graph functions. To graph a function, press the Y= button and enter the equation of the function. Then, press the GRAPH button. The calculator will graph the function. You can then use the cursor to find the roots of the function.
• Using the Desmos App: The Desmos App is a free graphing calculator app that can be used on tablets and smartphones. To use the Desmos App, open the app and enter the equation of the function you want to graph. The app will graph the function and you can then use the cursor to find the roots of the function.

  In this blog post, we have discussed how to get radical answers on the TI-84 Plus calculator. We have covered the following topics:

• How to enter a radical expression
• How to evaluate a radical expression
• How to simplify a radical expression
• How to convert a radical expression to a decimal
• How to graph a radical function

We hope that this blog post has been helpful. If you have any questions, please feel free to leave a comment below.