Finding Key Features of Quadratic Functions

Which one of the following best describes the point (0, -28) on the function below
f(x) = x² +3x - 28?

• (0, - 28) is the y-intercept

• (0, - 28) is the zero

• (0, - 28) is the solution

• (0, - 28) is the maximum vertex

How many solutions does this graph have?

• one

• two

• no solutions

• cannot be determined

A projectile is thrown in the air. What is the highest altitude of the projectile?

• 7 ft

• 500 ft

• 200 ft

• 350 ft

Which of the following statements about the following equations is FALSE?

• The vertex is (-4, -9)

• The axis of symmetry is x = -4

• The roots are (-7, 0) and (-1, 0)

• The y-intercept is (0, -3)

What is the y-intercept of the following equation?

f(x) = 3x² + 2x - 5

• (3, 0)

• (0, -5)

• (2, 1)

• (0, 3)

Fill in the blank: The _____ of a parabola is the highest or lowest point.

• x-intercept

• y-intercept

• vertex

• direction

• axis of symmetry

• (-2, -1)

• (0,3)

• (-3,0)

• (-1,0)

• x=-2

• (2, 9)

• (-1, 0)

• (5, 0)

• (0, 5)

• (-2, 1)

Select ALL that apply. The x-intercepts are often called...

• zeros

• solutions

• roots

• maximums

• minimums

• (-1, 0)

• (0,-3)

• (-3,0)

• (3,0)

• (0,3)