Question

Write y = -x2 - 4x - 9 in vertex form.
Answer
a. y = -(x + 2)2 - 5
b. y = (x + 4)2 - 9

c. y = -(x + 2)2 + 9
d. y = (x + 5)2 - 1

Answer 1

a

Answer 2

do you know how to complete the square?

Answer 3

No I don't get it the way its telling me

Answer 4

first factor out -1

Answer 5

y=-(x^2+4x+______) -9

Answer 6

Y=-(x^2+4x+4) +4 -9

Answer 7

y=-(x+2)^2-5