Question

For the function g(x)=-1/5x^2+4x+1. Write the equation in vertex form. g(x)=(blank)

Answer 1

g(x) = - 1/5 (x - 10)² + 21

Explanation:

Answer 2

g(x) = - 1/5 (x - 10)² + 21

Explanation:

g(x)= - 1/5x²+4x+1 = - 1/5 (x² - 20x) + 1 =

= - 1/5(x² -2*x*10 +( -10)²) + 1/5*(-10)² + 1 = - 1/5 (x - 10)² + 21