SOLUTION: Use the vertex (h, k)
and a point on the graph (x, y)
to find the general form of the equation of the quadratic function.
(h, k) = (−5, −1), (x, y) = (−7, 3
Algebra.Com
Question 1071429: Use the vertex (h, k)
and a point on the graph (x, y)
to find the general form of the equation of the quadratic function.
(h, k) = (−5, −1), (x, y) = (−7, 3)
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Standard Form Equation for a Parabola:
for vertex (h,k)
What about the coefficient, a, in case you also have an included point on the parabola?
-----and you would use your other given point to evaluate a. You were already also given (h,k) vertex.
Do you know what to do now?
( I did not substitute any values for you.)
--
Student wants further help:
Substituting the values, this happens.
solving for a and substituting the other point's values,
-
Standard Form equation is .
Fully multiply and further arithmetic simplification gives you general form .
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