Question

A parabola contains the points (1,8), (4, 29), and (-3, 8). What is the equation of this parabola in standard form?

Answer 1

Do we know if one is the vertex?

Answer 2

well we know standard form is x^2

Answer 3

@Austin6i6 - No. This was all the information I was given.

Answer 4

so if you input -3 you should get 9 because 3^2 = 9
but we don't so what can we do to x^2 to get are desired output of 8

Answer 5

@Austin6i6 - I'm not sure.... Sorry.

Answer 6

how about subtract 1

Answer 7

lets test with the other points now

Answer 8

nope didn't work

Answer 9

http://www.purplemath.com/modules/parabola3.htm
try this site. When i was in school we never used focus.

Answer 10

I think we would need to no more about those points, otherwise we are just guessing