Question

Find the coordinates of the vertex for the parabola whose equation is
f(x) = -4x2 + 8x - 4

Answer 1

(-2,36)

(-1,-16)

(2,-12)

(1,0)

Answer 2

You can find the vertex's "x" by using:
\[-b / 2a\]

Answer 3

You can then plug the resulting x back into the equation to get the corresponding y.

Answer 4

which is the answer?

Answer 5

I'm not just going to TELL you the answer. Do you know how to use the equation there?

Answer 6

no

Answer 7

Your equation is in the form:
\[f(x) = ax^2 + bx + c\]
Here, your a is -4. Your b is 8. Your c is -4.
Do you see ?