Quadratics Unit Study Guide

Find the y-intercept of f(x) = 2x² - 2x + 1

• 2
• -2
• 1
• -1

What is the vertex of the quadratic function:
y = x² - 6x + 11?

• (3,2)
• (-3,-2)
• (-3,2)
• (3,-2)

What are the roots of (2x - 7)(x +6)?

• {7, -6}

• {-7/2, -6}

• {7/2, -6}

• {7, -6}

Match the following

• discriminant > 0

• 1 solution

• discriminant < 0

• 0 real solutions

• discriminant = 0

• 2 solutions

3 For the function above, is the discriminant positive, negative, or zero?

• Positive

• Negative

• Zero

What does the discriminant tell us?

• The maximum or minimum

• The y-intercept

• The number and type of solutions

• The axis of symmetry

Say 'TRUE' or 'FALSE'
Every Quadratic equation has exactly one root

• TRUE
• FALSE

Identify the roots of the quadratic.

• x = {-1, 3}

• x = {-3}

• x = {1, -4}

• x = {1}

2 A function has a discriminant of 0.

How many x-intercepts does it have?

• 0

• 1

• 2

• 5

Factor: x² – 5x – 24

• (x - 5)(x + 19)
• (x - 8)(x + 3)
• (x - 3)(x + 8)
• (x - 19)(x + 5)