Question

vertex of: y=(x+12)(x-2)

Answer 1

Distribute out, and then use -b/2a. If you need more help just ask.

Answer 2

so it ends up being -5? @zordoloom

Answer 3

Okay, after you distribute, you get y=x^2+10x-24, When you apply -b/2a you do indeed get -5, but this would be the x-coordinate. To find the y, simply plug -5 back into the equation.

Answer 4

Let me know what you get for your vertex.

Answer 5

(-5,-49) @zordoloom

Answer 6

That would be correct. Good Job!

Answer 7

thank you @zordoloom

Answer 8

Sure thing!