Asked by Nissan GT-R R35 Nismo
What are the key points on the graph of y = x^2 - 2x -120? name the vertex, x-intercept(s) and the y-intercept(s)
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y = x^2 − 2x − 120
- Vertex: (1, −121) (since x = −b/(2a) = 1, y = 1 − 2 − 120 = −121)
- x-intercepts: (12, 0) and (−10, 0) (factors (x − 12)(x + 10) = 0)
- y-intercept: (0, −120)
(Parabola opens upward; axis of symmetry x = 1.)
- Vertex: (1, −121) (since x = −b/(2a) = 1, y = 1 − 2 − 120 = −121)
- x-intercepts: (12, 0) and (−10, 0) (factors (x − 12)(x + 10) = 0)
- y-intercept: (0, −120)
(Parabola opens upward; axis of symmetry x = 1.)
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