Parabolas: Forms

What is the vertex form of this quadratic?

• f(x) = -(x - 2)² + 0
• f(x) = (x - 2)² + 0
• f(x) = -(x + 2)² + 0
• f(x) = (x + 2)² + 0

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

What are the zeros for the function
f(x) = (x + 7)(x + 5)

• (7 , 0) and (5 , 0)
• (0 , 7) and (0 , 5)
• (-7 , 0) and (-5 , 0)
• (7 , 0) and (5 , 0)

Tags

CCSS.HSF-IF.C.7C

In addition to the a-value, what additional piece of information do we get from the following equation? $f\left(x\right)=7\left(x+1\right)^2+5$  

• vertex

• y-intercept

• x-intercepts

In addition to the a-value, what additional piece of information do we get from the following equation?

f(x) = 2x² - 4x - 6

• y-intercept

• vertex

• x-intercepts

What is the line of symmetry for  $f\left(x\right)=-2x^2+4x-6$  

•  $x=4$  
  

•  $x=-4$   
  

•  $x=1$  
  

•  $x=-1$  
  

Is this function wider, narrower, or the same as $y=x^2$  ?

 $f\left(x\right)=-\frac{1}{4}\left(x-7\right)^2-9$  

• Wider

• Narrower

• Same

True or False:
The domain of a quadratic is all real numbers.

• False
• True

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

All Parabolas contain a vertex, when it opens up, this point is called a what?

• Maximum
• Minimum

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

What are the x-intercepts of 
f(x)=(x - 10)(x + 10)

• 10
• (10 , 0) and (-10 , 0)
• (0, -10) and (0, 10)
• 0

Tags

CCSS.HSF-IF.C.7C

What are the roots of the function
f(x)= (x - 2)(x + 3)?

• x = - 2 or x = 3
• x = 2 or x = -3
• The are no real roots
• x = 2 or x = 3

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A