Quadratics Test Review

If given the equation

y = 3(x + 5)² - 4, what is the vertex of the parabola?

• (5, -4)

• (-5, -4)

• (-15, -4)

• (15, -4)

What is the axis of symmetry for the following equation?

y=3x²-6x+5

• x=-6

• x=1

• x=-1

• x=2

John throws a ball upward at a speed of 40 feet per second from a platform that is 20 feet high. The height of the ball is given by the function h(t) = -16t² + 40t + 20, where t is the time in seconds. What is the maximum height that the ball reaches?

• A. 45 ft.

• B. 50 ft.

• C. 60 ft.

• D. 55 ft.

Is the graph concave up or down?

f(x) = -(x + 3)² - 5

• concave up

• concave down

Find the axis of symmetry for
f(x) = 2x²- 8x + 15.

• x = -4
• x = 2
• y = 4
• y = -4

What is the vertex?

• (2, 4)
• (3, -1)
• (0, 8)
• (4, 2)

Does this graph have a maximum or minimum value?

• maximum
• minimum
• neither
• both

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1