FFPC Review for Summative

Which of the following is the correct expanded form for the equation  $y=2x\left(x-4\right)$  

•  $y=2x^2-8x$  

•  $y=x^2-8$  

•  $y=2x^2-4$  

•  $y=2x-8$  

Which of the following is the correct Factored Form of the equation  $y=x^2-10x+16$  ?

•  $y=\left(x-8\right)\left(x-2\right)$  

•  $y=\left(x+4\right)\left(x+4\right)$  

•  $y=\left(x+8\right)\left(x+2\right)$  

•  $y=\left(x-4\right)\left(x+4\right)$  

Which of the following is the correct expanded form for the equation  $y=\left(4x+5\right)\left(2x-1\right)$  

•  $y=8x^2+6x-5$  

•  $y=8x^2-6x-5$  

•  $y=x^2+6x+5$  

•  $y=8x^2+14x-5$  

The graph of  $y=x^2-4x-10$  will have a...

• Maximum

• Minimum

The graph of  $y=-x^2+4x+20$  will have a...

• Maximum

• Minimum

Select ALL of the roots (x-intercepts) of the equation  $y=\left(x-7\right)\left(x+2\right)$  

• (7,0)

• (-2,0)

• (0,7)

• (0,-2)

• (-7,0)

The quadratic function represented by the equation  $y=x^2-2x-8$  will have x-intercepts (roots) at...(Select all that apply)

• (4,0)

• (-2,0)

• (0,-2)

• (-4,0)

• (2,0)

The quadratic function represented by the equation  $y=-2x\left(x-3\right)$  will have x-intercept(s) at...(select all that apply)

• (0,0)

• (3,0)

• (0,3)

• (0,-2)

• (-3,0)

The quadratic relationship represented by the equation  $y=\left(x+1\right)^2$  will have x-intercept(s) at...(select all that apply)

• (-1,0)

• (1,0)

• (0,-1)

• (0,1)

Which of the following is the y-intercept of the graph of  $y=-16x^2+9x-7$  

• (0,-7)

• (-7,0)

• (0,9)

• (0,7)