Find an Equation of Variation for the Given Situation $y = 0.35 x ^ { 2 }$

Multiple Choice

Find an equation of variation for the given situation.
- y varies directly as the square of x , and y=8.75 when x=5 .

A) $y = 0.35 x ^ { 2 }$
B) $y = 0.39 \sqrt { x }$
C) $y = 1.92 x ^ { 2 }$
D) $y = 0.4 x ^ { 2 }$