This is a velocity function. So, what is the y value at x = 1?
Use geometry to approximate the area under the curve.
Trapezoid Method 107.5 ft
Midpoint Method 101.75 ft
There are other valid geometric methods.
Your answer in part (c) is an approximation of how far the cheetah traveled in 3 seconds. At t = 0, Annalou was only 50 feet north of the pond. Where was the cheetah?