Question

A quadratic function has its vertex at the point ( 0 , − 4 ) . The function passes through the point ( − 5 , 10 ) . Find the quadratic and linear coefficients and the constant term of the function.

Answer 1

Explanation:

let quadratic function be y=a(x-0)²-4

∵ it passes through (-5,10)

10=a(-5-0)²-4

14=25a

a=14/25

so function is y=14/25x²-4