The answer is
A. No, because 1 x-value corresponds to 2 different y-values
Like earlier take the bigger shape and divide the smaller one.
8.4 divide by 4 and you get 2.1.
S = 2 * (pi) * r * h.....for r
divide both sides by 2 * pi * h
s / (2(pi)h = r
F(C) = 9/5C + 32
I'll just change F(C) to y and 9/5C to 9/5x.
y = 9/5x + 32
inverse...
x = 9/5y + 32
9/5y = x - 32
y = 5/9x - 160/9
Sooooo
F(C) = 5/9C - 160/9