Question

The graph of which quadratic equation is shown below?
A. y = x2 + 4x − 3
B. y = x2 − 4x + 3
C. y = −x2 + 4x − 3
D. y = −x2 − 4x + 3
*Graph in comments*

Answer 1

the graph passes thru (1,0) an (3,0)

y=(x-1)(x-3)

Answer 2

and because it opens upward... so x2 is positive

Answer 3

this is one way another way is that you know the vertex therefore you if complete the square and factor you can find the vertex

Answer 4

right, the vertex is (2,-1)... so the equation has to be
\[\Large y=a(x-2)^2-1\]

...here a=1

Answer 5

So it would be A?

Answer 6

no...

Answer 7

Ohh B?

Answer 8

Wow (:

Answer 9

figure it out yet?

Answer 10

yes B.

Answer 11

Yep! Thanks y'all!