#1**+1 **

6 (a)

Here's the graph https://www.desmos.com/calculator/ej36jt2v3h

(b) We actually have a trapezoid here

The height = 4

One base = 20

The other = 180

So...the area (above the x axis ) is

(1/2) (height) (sum of bases) =

(1/2) (4) ( 20 + 180) =

(1/2) (4) ( 200) =

2 (200) =

400 units^2

(c) The function is a velocity function.....the area under the curve represents the total distance traveled between hour 0 and hour 4

CPhill Nov 23, 2019