2a + b = 15.7
length a is longer than b.
a = 6.3
2a + b = 15.7
(2*6.3) + b = 15.7
12.6 + b = 15.7
b = 15.7 - 12.6
b = 3.1
therefore the base length is 3.1 cm
Horizontal means the equation is y=something
(x,y)
(0,-2)
y=-2 is the equaiton
or
f(x)=-2
It should be step 4 because it doesn't look right and they just added that from no where
Area of a square=x^2
where x=1 side
if x=8 then
8^2=8 times 8=64
answer is 64 square feet
I'm pretty sure it's B. rotational
