Question

Create a graph; then answer the following question.

Given the quadratic equation y=x2−8x
, name the vertex, x-intercepts (s), and y-intercept.
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(1 point)
Responses

x-intercept: (4, -16)

y-intercept: (0, 0)

vertex: (8, 0)

x-intercept: (4, -16) y-intercept: (0, 0) vertex: (8, 0)

x-intercept: (0, 8)

y-intercept: (0, 0)

vertex: (4, -16)

x-intercept: (0, 8) y-intercept: (0, 0) vertex: (4, -16)

x-intercepts: (0, 0) and (0, 8)

vertex: (4, 16)

There is no y-intercept.

x-intercepts: (0, 0) and (0, 8) vertex: (4, 16) There is no y-intercept.

x-intercepts: (0, 0) and (8, 0)

y-intercept: (0, 0)

vertex: (4, -16)

x-intercepts: (0, 0) and (8, 0) y-intercept: (0, 0) vertex : (4, -16)
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Answer 1

y = x^2 − 8x = (x−4)^2 − 16, so
- Vertex: (4, −16)
- x-intercepts: (0, 0) and (8, 0) (solve x(x−8)=0)
- y-intercept: (0, 0)

The correct multiple-choice line is the one listing: x-intercepts (0,0) and (8,0); y-intercept (0,0); vertex (4,−16).