Quadratic Review Part 1

 $y\ =\ -x^2+\ 8x\ -\ 2$  
Find the axis of symmetry.

• y = 4

• x = 14

• x = -4

• x = 4

 $y\ =\ -x^2\ +\ 8x\ -\ 2$  
Find the vertex. 

• (4, 14)

• (-4, 14)

• (14, 4)

• (4, 44)

 $y\ =\ -x^2+8x\ -2$  

Find the y-intercept.

• (0,2)

• (2,0)

• (0,-2)

• (-2,0)

 $f\left(x\right)\ =\ 3\left(x+2\right)^2-6$  

Find the axis of symmetry and the vertex.

• x = 2 and (2, -6)

• x = -2 and (-2, -6)

• x = 2 and (2, 6)

• x = -2 and (-2, 6)

 $f\left(x\right)\ =\ 3\left(x+2\right)^2-6$  

Find the y-intercept.

• (0,6)

• (6,0)

• (0,30)

• (30,0)

 $f\left(x\right)\ =\ 3\left(x+2\right)^2-6$  

Describe how the parent function has been transformed.

• moved right 2, down 6 and wider

• moved right 2, down 6 and more narrow

• moved left 2, down 6 and wider

• moved left 2, down 6 and more narrow

 $y\ =\ 3x^2+18x$  

Write in vertex form.

•  $y\ =\ 3\left(x+3\right)^2-27$  

•  $y\ =\ 3\left(x-3\right)^2-27$  

•  $y\ =\ 3\left(x+3\right)^2$  

•  $y\ =\ \left(x-3\right)^2-134$  

Simplify (3 - 4i)(5 + 2i)

• 7 + 26i

• 7 - 14i

• 23 - 14i

• 23 + 26i

Solve the quadratic equation.  (Round your answer to the nearest tenth. 
 $2x^2\ -\ 3x\ -\ 11\ =\ 0$  

• - .7, 2.2

• - 1.7, 3.2

• -1.1, 7.1

• no real solutions

Solve.
 $3x^2\ +\ 48\ =\ 0$  

• 4, -4

• 16, -16

• 0, 4

• 4i, -4i