Question

Write the quadratic function in the form y = a(x - h)^2+ k. (10Points)

Answer 1

Explanation:

y = x^2 -14x + 39

take 1/2 of the x coefficient (-14) square it then add it and subtract it :

x^2 - 14x + 49 - 49 + 39 Now reduce the three Left terms

(x-7)^2 - 49 +39 simplify the R portion

y = (x-7)^2 - 10 This process is called 'completing the square'

Answer 2

D is the correct option.