When Quinn got home, he turned the air conditioner on. Q represents the temperature in Quinn's home (in degrees Celsius) after t minutes.
Q=42-0.7t
What was the temperature when Quinn returned home?

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

the answer is 5/14.

hope this .

you first to choose the points and then move from then as the slope you have