Quadratics Practice - Standard Form

What is the axis of symmetry for the following equation?

y = 4x² - 8x + 9

• x = -8

• x = 1

• x = -1

• x = 2

Tags

CCSS.HSA.REI.B.4

Find the vertex of

f(x) = -x² - 4x + 12

• (-2, 16)

• (2, 0)

• (2, 4)

• (-2, 4)

Tags

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

What is the y-intercept for the following equation?

y = 4x² - 8x + 9

• (0, 1)

• (0, 9)

• (0, -1)

• (0, 2)

Tags

CCSS.HSF-IF.C.7A

What is the vertex for the following equation?

y = 4x² - 8x + 9

• (4, -8)

• (0, 9)

• (-1, 21)

• (1, 5)

Tags

CCSS.HSA.REI.B.4

Which formula allows you to find the x-value of the vertex from a standard form equation?

•  $x=-\frac{b}{2a}$  

•  $x=\frac{\left(p+q\right)}{2}$  

•  $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$  

•  $x=h$  

Tags

CCSS.HSA.REI.B.4

Find the axis of symmetry for the following equation.

 $y=-x^2-10x+7$  


x = _________

The axis of symmetry for a vertical parabola always matches...

• the y-intercept

• the y-value of the vertex

• the x-value of the vertex

• the x-intercepts

Tags

CCSS.HSF.IF.B.4

Find the vertex, AOS, and y-intercept for the following equation.

 $y=-4x^2+20x-22$  

Choose all below that apply.

• Vertex:  $\left(\frac{5}{2},\ 3\right)$  

• Vertex:  $\left(-\frac{5}{2},\ -97\right)$  

• AOS:  $x\ =\ \frac{5}{2}$  

• AOS:  $x\ =\ -\frac{5}{2}$  

• y-intercept:  $\left(0,\ 3\right)$  

Which equation matches the graph?

•  $y=2x^2+8x-5$  

•  $y=2x^2-8x-5$  

•  $y=-2x^2+8x-5$  

•  $y=2x^2+8x+5$  

Tags

CCSS.HSF-IF.C.7A

Which graph matches the equation below?

 $y=3x^2-6x-2$  

• 
• 
• 
• 

Tags

CCSS.HSF-IF.C.7A