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Viktor [21]
2 years ago
7

Complete the square to re-write the quadratic function in vertex form: y = x ^ 2 - 2x - 8

Mathematics
2 answers:
aivan3 [116]2 years ago
7 0

Answer:

y=(x-1)^2-9

Step-by-step explanation:

y=x^2-2x-8

To complete the square:

\frac{b}{2}=(-1)^2=1

y=x^2-2x-8

+9                 +9

y+9=x^2-2x+1

(x-1)^2=y+9

          -9         -9

y=(x-1)^2-9

blondinia [14]2 years ago
3 0

Answer:

(1,-9)

Step-by-step explanation:

Rewrite in vertex form and use this form to find the vertex

(h,k).

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