# How do I find a definite integral on a TI-84?

##### 1 Answer

Sep 25, 2014

A definite integral can be found on the TI-84 by 2 methods.

This can best be described by using an example.

**Method 1:**

Press the **MATH** button

Press **9** to get to the definite integral function

Use the arrow key to move the cursor

Enter the boundaries and function

Press **ENTER** to get the result

**Method 2:** Visual

Press the **Y=** button

Enter the function

Press the **GRAPH** button

Press **2ND** button

Press **TRACE** button

Press **7** to get to the integration function

Enter the **Lower Limit**

In this example Press **0**

Press **Enter**

Enter the **Upper Limit**

In this example Press **5**

Press **Enter**

Watch the TI-84 shade in the region.

See the result, **12.5**, and the interval, **[0,5]**, at the bottom of TI-84 window.