SOLUTION: Hello! I have these two points given: (-3,-2),(0,7) What is the equation for the parabola in standard form? Thank you

Algebra ->  Equations -> SOLUTION: Hello! I have these two points given: (-3,-2),(0,7) What is the equation for the parabola in standard form? Thank you      Log On


   

Question 977097: Hello!
I have these two points given: (-3,-2),(0,7)
What is the equation for the parabola in standard form?
Thank you
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
You could assume vertical symmetry axis and try using standard form.

y=a%28x-h%29%5E2%2Bk
7=a%280-h%29%5E2%2Bk
7=ah%5E2%2Bk

The other point:
-2=a%28-3-h%29%5E2%2Bk

You still have only two equations but three unknown variables. One more point needs to be known or given.