Question

If f(x) it varies directly with X and f(X)=90 when x=10, find the value of f(x) when x=7

Then round to the nearest whole number

Answer 1

(5/2,9)

Explanation:

Midpoint Formula: (((x1+x2)/2),((y1+22)/2))= (((-6+11)/2),((13+5)/2))= (5/2,9)