Question

Consider the graph of g(x) = –2x2 + 8x – 10. Identify the y-intercept, the vertex, and the zeros of the function.

Question 10 options:

A)

y-intercept: (0, 10); vertex: (–2, 2); zeros: none

B)

y-intercept: (0, –10); vertex: (2, –2); zeros: (0,0) and (4,0)

C)

y-intercept: (0, –10); vertex: (2, –2); zeros: (0,0)

D)

y-intercept: (0, –10); vertex: (2, –2); zeros: none

Answer 1

9514 1404 393

Answer:

D) y-intercept: (0, -10); vertex: (2, -2); zeros: none

Explanation:

The graph does not cross the x-axis, so there are no real zeros. It crosses the y-axis at (0, -10), so that is the y-intercept.

These observations match choice D.