Quadratics Quiz Review

What is the vertex and axis of symmetry of the graph pictured?

• Vertex: (0,1)

  Axis of Symmetry: x=1

• Vertex: (-2,-3)

  Axis of Symmetry: x=-3

• Vertex: (-3,-2)

  Axis of Symmetry: x=-2

• Vertex: (-2,-3)

  Axis of Symmetry: x=-2

Find the zeros of the function

 $f\left(x\right)=x^2-9x+18$  

•  $x=-3,-6$  

•  $x=-9,18$  

•  $x=3,6$  

•  $x=2$  

Find the zeros of the function

 $f\left(x\right)=5x^2+16x+12$  by factoring.

•  $x=2,-\frac{6}{5}$  

•  $x=10,6$  

•  $x=-10,-6$  

•  $x=-2,\frac{6}{5}$  

Find the zeros of the function by factoring.

 $f\left(x\right)=x^2-x-6$  .
Select all correct answers.

•  $x=2$  

•  $x=-2$  

•  $x=3$  

•  $x=6$  

What are the x intercepts of the graph pictured?

Select all that apply.

• $\left(-4,0\right)$

• $\left(0,4\right)$

• $\left(-2,-4\right)$

• $\left(0,0\right)$

What is the y intercept of the graph pictured?

• $\left(-4,0\right)$

• $\left(0,4\right)$

• $\left(-2,-4\right)$

• $\left(0,0\right)$

Simplify:

 $\sqrt{-36}$  

• -6

• 6

• 36i

• 6i

Simplify:

 $\left(4+5i\right)+\left(6-3i\right)$  

•  $10+8i$  

•  $10+2i$  

•  $24-15i^2$  

•  $12i$  

Simplify:

 $\left(-11-3i\right)-\left(4-2i\right)$  

•  $-7-5i$  

•  $-15-5i$  

•  $7-i$  

•  $-15-i$  

Simplify:

 $\left(3-i\right)\ +\ \left(-3-i\right)$  

• 0

•  $6-2i$  

•  $-2i$  

•  $6$