Question

he axis of symmetry for the graph of the function is f(x) = x2 + bx + 10 is x = 6. What is the value of b?

Answer 1

b = -12

Explanation:

The axis of symmetry goes through the point that represents the x value of the vertex when you complete the square.

y = (x - 6)^2 + 10 + c

y = x^2 - 12x + 36 + 10 - 36

y = (x^2 - 12x + 36) - 26

y = (x - 6)^2 - 26