Question

HELPPPPPP!!
Suppose the function shown below was expressed in standard form,


. What is the value of a?

Answer 1

I think its 2

Answer 2

No function is showing below.

Answer 3

ohh sorry hold on :)

Answer 4

It is a parabola with vertex at (1, -2)

The standard equation of a parabola with vertex at (h, k) is:
y = a(x - h)^2 + k

Substitute for h and k in the above equation.

You can also see the parabola crosses the x axis at x = 2. So y = 0
(2, 0) is a point on the parabola
Substitute x = 2 and y = 0 above and solve for a.

Answer 5

You have the correct answer!

Answer 6

Thank you!

Answer 7

yw