Question

(2, .5) is on the graph of the function f(x) = ax^2. Find the value of a.

Answer 1

a = 1/8

Explanation:

2 is the x value and y =.5

Substitute this into the equation

f(x) = ax^2

.5 = a(2)^2

.5 = a 4

Divide each side by 4

.5/4 = 4a/4

1/8 = a