SOLUTION: Please help me sketch the following function but first determine the critical points.
F (x)=x^2-2x-3: xintercepts, y-intercepts and vertex
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F (x)=x^2-2x-3: xintercepts, y-intercepts and vertex
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Question 814590: Please help me sketch the following function but first determine the critical points.
F (x)=x^2-2x-3: xintercepts, y-intercepts and vertex Answer by ewatrrr(24785) (Show Source):
Hi,
See highlighted
Note: the vertex form of a parabola is,
where(h,k) is the vertex
F(x)=x^2-2x-3 |Completing the Square
F(x)=(x-1)^2 -1 - 3
F(x)=(x-1)^2 - 4 and If x = 0 then y = -3
If (x-1)^2 - 4 = 0 , x = 1 ±= 1 ± 2 , x = -1, 3
