Question

graph and lable vertex . and wright in vertex form
y=x^2+4x-7

Answer 1

Do you know how to start?

Answer 2

to find the vertex, use -b/2a

Answer 3

so -4/?

Answer 4

yes, -4/2

Answer 5

so vertex is at -2, (y value)

Answer 6

to find the y- value, plug the x value back into the equation.

Answer 7

x is ?

Answer 8

x is -2

Answer 9

-4/2 is -2.

Answer 10

so vertex is at (-2, -11)

Answer 11

now just complete the square to put in vertex form.
it would look like y=(x+2)^2-11