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

User Glukki
by
6.3k points

1 Answer

5 votes

Answer: (2, -25)

Explanation:

The x coordinate of the vertex is
x=-(-4)/(2(1))=2.

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

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

Find the vertex of the function h(x) = x2 – 4x – 21-example-1
User Capu
by
6.5k points
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