Solving Quadratic Functions- Factoring & Sq Roots

Find the zeros.

• 0 and 4
• 0 and -4
• 0
• -4

Tags

CCSS.HSF-IF.C.7A

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

• x=3,-2
• x=-3,2
• x=2,3
• x=3,2

Tags

CCSS.HSA-REI.B.4B

ax²+bx+c=0  is the standard form of a quadratic equation.

• True
• False

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

Solve the equation: 
5x² - 35x + 60 = 0

• x = 3,  -4
• x = -3,  4
• x = 3,  4
• x = -3,  -4

Tags

CCSS.HSA-REI.B.4B

What is the vertex of the graph?

• (2, 4)
• (3, -1)
• (0, 8)
• (4, 2)

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

A ball is thrown into the air from the top of a building. The height, h(t), of the ball above the ground t seconds after it is thrown can be modeled by  $h\left(t\right)=-16t^2++64t+80$ .  

How many seconds after being thrown will the ball hit the ground?

• 5

• 2
  

• 80

• 144

 $Given:\ \ x^2-10x\ +\ 21\ =\ 0$  

What are the solutions of the equation

•  $1\ \ and\ \ 21$  

•   $-5\ \ and\ \ 5$  

•  $3\ \ and\ \ 7$  

•  $-3\ \ and\ \ -7$  

Tags

CCSS.HSA-REI.B.4B

Factor Completely:
x² - 36

• (x + 9)(x - 4)
• (x - 6)(x - 6)
• (x - 9)(x + 4)
• (x + 6)(x - 6)

Tags

CCSS.HSA.APR.C.4

Factor 
3x² + 2x - 21

• A. (3x + 7)(x - 3)
• B. (3x - 7)(x + 3)
• C. (3x - 7)(x - 3) 
• D. (3x + 7)(x + 3) 

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

True or false:
The solution, root, x-intercept, and zero of a problem are all the same thing.

• True
• False, because the solution and root are the same but the x-intercept and zero are different
• False, because the x-intercept and root are the same but the zero and solution are different
• False, they are all different

Tags

CCSS.HSA.REI.D.11