Question

Convert the function into vertex form. Show your work. y=x^2+4x+9

Answer 1

y= a(x-h)^2 + k

Answer 2

i need work shown i need to understand

Answer 3

-b/2a = the axis of symmetry and x coordinate to your vertex

Answer 4

-4/2 = -2

Answer 5

Then plug -2 into your equation to find the y coordinate.

Answer 6

y = -2^2 + 4(-2) + 9
y = 4 - 8 + 9
y = -4 + 9
y = 5

Answer 7

convert x^2+4x+9 in to a complete square...