5.1A-5.2A Review PC Ryken

What is the green dot on the parabola called?

• maximum
• minumum
• roots
• zeros

Find the vertex. y = x²+ 16x + 71 (x = -b/2a)

• V(-8, 7)

• V(-8, 3)

• V(8, 10)

• V(16, -2)

Does this graph have a maximum or minimum?

• Minimum
• Maximum

What is the green dashed line called?

• roots or x-intercepts
• parabola
• axis of symmetry
• line of dashes

What is the axis of symmetry for this graph?

• y=2
• x=2
• x=0
• y=0

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

A parabola has a vertex at (-3,2). Where is the axis of symmetry?

• y = -2
• x = 3
• x = -3
• y = 2

 $y=-3(x+5)^2-4$  
Convert the equation from vertex form to standard form.

• y = 9x² - 15x + 21

• y = -3x² - 75x - 4

• y = 9x² + 90x + 221

• y = -3x² - 30x - 79

 $y=4(x+2)^2-8$ 

Convert the equation from vertex form to standard form. 

•  $y=4x^2+16x+8$  

•  $y=4x^2+16x+16$  

•  $y=16x^2+64x-8$  

•  $y=16x^2+256x+8$  

Using the graph solve the equation
-x²-2x+3=-5.

• {-3,-1}
• {-2,0}
• {-4,2}
• {-1,4}