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mario62 [17]
3 years ago
8

1.) What is the vertex of the quadratic function y=x^2-4x-1

Mathematics
1 answer:
Serjik [45]3 years ago
4 0
1.  Solve by differentiation (Derivative = 0 at the vertex)

dy/dx= 2x-4

0=2x-4

0=2(x-2)

x=2

when x=2 y=-5

therefore vertex (2,-5)

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