Question

question 10 of 10
on a parabola, the extreme point (which is the highest, lowest, or farthest point left or right) is called the

a. directrix
b. focus
c. center
d. vertex

Explanation:

A parabola's vertex is its extreme point (highest, lowest, etc.). The directrix is a line, the focus is a fixed point (not the extreme), and a parabola has no center. So, the answer is vertex.

Answer:

D. vertex