Unit 3 Test Review - Solving Quadratics

How many solutions can a quadratic have? Select all that apply!

• 1 solution

• 3 solutions

• 0 solutions

• 2 solutions

What can the roots to a quadratic equation be called? Select all that apply!

• zeros

• solutions

• x-intercepts

• none of the choices

What is the quadratic formula?

• 
• 
• 
• 

What are the solutions to this equation?
(x-3)(x+2)=0

• x=3,-2
• x=-3,2
• x=2,3
• x=3,2

Solve the equation by factoring:

x² + 13x + 40 = 0

• -8, 5

• -40, -1

• 5, 8

• -8, -5

What are the x- intercepts/solutions?

• x= 0 and x= -4

• x= 0 and x= 4

• y= 0

• x= 2

1 The discriminant is

• aX² + bX + c

• b - 4ac

• b² - 4ac

• b² + 4ac

1 In the equation

y = x² +5x +7,

match each leading coefficient with its correct letter.

• a=0, b=5, c=7

• a=1, b=5, c=7

• a=7, b=5, c=1

1 What does the discriminant tell us?

• The maximum or minimum

• The y-intercept

• The number and type of solutions

• The axis of symmetry

3 What is the discriminant of

-2x² − x − 1 = 0 ?

• 76

• -7

• 9

• none of these