Find the vertex of the function h(x) = x2 – 4x – 21

Mathematics

1 answer:

lakkis [162]1 year ago

7 0

Answer: (2, -25)

Step-by-step explanation:

The x coordinate of the vertex is $x=-\frac{-4}{2(1)}=2$ .

When x=2, $h(2)=2^2 - 4(2)-21=-25$ .

So, the vertex is (2, -25).

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