Algebra I - Solving Quadratic Equations (Graphing & Factoring)

What are the zeros?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

Tags

CCSS.HSF-IF.C.7A

How many zeros does this parabola have? 

• 3
• 2
• 0
• 1

Tags

CCSS.HSF-IF.C.7A

Which of the following equations matches standard form of a quadratic?

• ax + by = c
• y = a(x - h)² + k
• y = ax² + bx + c
• y = mx + b

Tags

CCSS.HSA.SSE.B.3

What is another word for zeros?

• y-intercepts
• roots
• vertex
• axis of symmetry

If the discriminant is zero, how many solutions will there be?

• no real solutions

• two real solutions

• 1 real solution

If the discriminant is positive, how many solutions will there be?

• one real solution

• two real solutions

• no real solutions

If the discriminant is negative, how many solutions will there be?

• one real solution

• two real solutions

• no real solutions

What is the discriminant of -2x² − x − 1 = 0

• 76

• -7

• 9

• none of these

Solve by factoring

x²+2x-15=0 are

• x = 3 or x = 5

• x = 5 or x = -3

• x = -5 or x = 3

• x = -3 or x = -5

Tags

CCSS.HSA-REI.B.4B

Solve by factoring.
b² + 2b - 24 = 0

• x = 6 or x = -4
• x = -6 or x = -4
• x = 6 or x = 4
• x = -6 or x = 4

Tags

CCSS.HSA-REI.B.4B