What is the vertex of the parabola y = 2x2?
(0, 0) (0, 2) (1, 1) (2, 2)
Which of these is the axis of symmetry of y = 3(x − 4)2 − 4?
4 -4 x = 4 y = -4
The parabola y ⚌ -0.25x2 + 4x – 5 has a vertex of (8, 11). What is its maximum or minimum value?
The minimum value is 8. The minimum value is 11. The maximum value is 8. The maximum value is 11.
The parabola y ⚌ 2x2 + 16x + 39 has a vertex of (-4, 7). What is its domain and range?
The range is y ≤ 7, and the domain is all real numbers. The range is y ≥ 7, and the domain is all real numbers. The domain is x ≤ -4, and the range is all real numbers. The domain is x ≥ -4, and the range is all real numbers.
