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4 years ago

In the form f(x)=a(x-h)^2+k

Mathematics

1 answer:

Gekata [30.6K]4 years ago

6 0

Vertex is (h,k)
se see vertex is (1,-4)
y=a(x-1)^2-4
find a
another point is (4,-2)

-2=a(4-1)^2-4
-2=a(3)^2-4
-2=9a-4
add 4
2=9a
divide b 9
2/9=a

$f(x)= \frac{2}{9}(x-1)^2-4$

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