Please help! Will give medal!
4. What is the vertex form of the equation below?
y=x^2+4x-3

Question

Please help! Will give medal!
4. What is the vertex form of the equation below?
y=x^2+4x-3

anonymous · Answer

first coordinate of the vertex is $-\frac{b}{2a}$ which in your case is $$-\frac{4}{2\times 1}=-2$$

anonymous · Answer

second coordinate of the vertex is is what you get when you replace $x$ by $-2$

anonymous · Answer

once you have your vertex $(h,k)$ vertex form is $$y=(x-h)^2+k$$

dinorap1 · Answer

@satellite73 
Oh, I get it. Soo... you replace x with -2, and you get y=-7, right?

dinorap1 · Answer

So does it become y=(x-2)^2-7?

dinorap1 · Answer

I'm assuming that's the answer... thanks for the help @satellite73 ! Sorry for not being here when you replied! :(