To find the inverse all you do is swap your x and y then solve it through. for this one you gotta take f(x) and make it y
y = 1/4x - 12
then swap
x = 1/4y - 12
then solve it through
x - 12 = 1/4y
divide by (1/4)
and (x - 12)4 = y should be your answer
Answer:
78 is 7 divided by 8, which equals 0.875. So an equivalent fraction is another fraction that also equals 0.875.
5y = 2x.....y = (2/5)x
y = (2/5)x
10y = 4x.....y = 4/10x....y = (2/5)x
5xy = 2....y = 2/(5x) <==== this does not belong because it is not a linear equation like the rest of them are.