Question

Use a quadratic function to model the area of each function. graph the function. evaluate each function for x = 8

top of square: 2x + 4, side: x +3

(other question)

top: 3x - 9, side: x + 2

HELP

Answer 1

A=220 and 150 un^2

Explanation:

The area for a square is LxW

you have one square with dimensions 2x+4 by x+3 and another with dimensions 3x-9 by x+2

for your first set: A=LxW= (2x+4)*(x+3)

evaluate at x=8: A= (2(8)+4)*(8+3) = 220

second set: A=LxW = (3x-9)*(x+2)

evaluate at x=8: A= (3(8)-9)*(8+2) = 150