Question

The function f(x) = 4x + 30 represents the length of a rectangle. The function g(x) = x − 1 represents the width of the rectangle. Use (f • g)(5) to determine the area of the rectangle.

4
46
50
200

Answer 1

200

Explanation:

got it right on quiz

Answer 2

200

Explanation:

area of the rectangle= length* width

the statement tell us area of the rectangle= (f • g)(5)

(f • g)= (4x + 30)*(x − 1)

(f • g)(5)=(4*(5) + 30)*(5 − 1)

(f • g)(5)= (20+30)*(4)

(f • g)(5)=50*4

(f • g)(5)=200