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5 votes
In which form is the following function written?

y+20=8(x+7)^2

2 Answers

4 votes

Answer:

Vertex!

(just got it right)

User Posdef
by
6.9k points
5 votes

Answer:

(a variation of) vertex form

Explanation:

For vertical scale factor "a" and vertex (h, k), the vertex form of the equation for a parabola can be written as ...

y = a(x -h)^2 +k

If k is subtracted from this equation, an alternate form is ...

y -k = a(x -h)^2

This latter version of vertex form is the form your equation has, where ...

  • a = 8
  • (h, k) = (-7, -20)
In which form is the following function written? y+20=8(x+7)^2-example-1
User Uva
by
6.5k points