Question

In Exercises 7–10, graph the function, and label its vertex and y-intercept.

7. F(x) = 3x^2 – 12x + 6
8. y = 5x2 + 20x - 9
9. y = –6x2 – 12x - 5
10. f(x) = -7x2 + 28x - 8

Answer 1

#7: Vertex is (2,-6)

y-intercept is (0,6)

#8: Vertex is (-2,-29)

y-intercept is (0,-9)

#9: Vertex is (-1,1)

y-intercept is (0,-5)

#10: Vertex is (2,20)

y-intercept is (0,-8)

Explanation:

Graphs are in the picture below