
Calculator Activity
INTEGRALS
OBJECTIVE: To find the area under a curve by evaluating integrals.
1.Find the area under the curve of x given the lower bound is 1 and the upper bound is 2.
STEP 1: Press
.
STEP 2: Enter the lower bound of 1 by pressing
.
STEP 3: Enter the upper bound of 2 by pressing
.
STEP 4: Enter x by pressing 
.
STEP 5: Evaluate the integral by pressing
.
2.Find the area under the curve of x 2 given the lower bound is 1 and the upper bound is 2.
STEP 1: Press
.
STEP 2: Enter the lower bound of 1 by pressing
.
STEP 3: Enter the upper bound of 2 by pressing
.
STEP 4: Enter x 2 by pressing 
.
STEP 5: Evaluate the integral by pressing
.
3.Find the area under the curve of x3 given the lower bound is 1 and the upper bound is 2.
STEP 1: Press
.
STEP 2: Enter the lower bound of 1 by pressing
.
STEP 3: Enter the upper bound of 2 by pressing
.
STEP 4: Enter x3 by pressing 

.
STEP 5: Evaluate the integral by pressing
.
54