Question

1. Which of the following equations has an axis of symmetry with the equation x = 3?

2. Which of the following parabolas opens upward and appears narrower than y = -3x2 + 2x - 1?
a.
y = 4x2 - 2x - 1
c.
y = x2 + 4x
b.
y = -4x2 + 2x - 1
d.
y = -2x2 + x + 3

3. What are the coordinates of the vertex of the parabola y = x2 - 2x - 1?
a.
(-1, 2)
c.
(-1, -2)
b.
(1, 2)
d.
(1, -2)

Answer 1

please help :)