Quadratics Review so far

What is the vertex?

• (2, 3)

• (3, 2)

• (0, 10)

• x = 3

What is the y-intercept?

• (6, 0)

• (-1, 0)

• (0, 3)

• (2.5, 6)

Does the parabola open up or down?

• Up

• Down

Select the x-intercept(s). (Select ALL that apply)

• (-1, 0)

• (3, 0)

• (6, 0)

• (0, 3)

What is the axis of symmetry?

• x = 2

• x = -9

• x = -1

• x = 5

Given the equation  $y=\left(3x+2\right)\left(-x+5\right)$ , what is a possible solution?

• x = -2

• x = 5

• x = -5

• x = 3

Given the function  $f\left(x\right)=\left(x+3\right)^{2\ }-25$ , what are the possible zeros?

•  $x\ =\ \pm5$  

•  $x=\pm\sqrt{22}$  

•  $x\ =\ 2,\ x\ =-8$  

•  $x=\pm8$  

How many real solutions does this function have?

• 2

• 1

• 0

How many real solutions does this function have?

• 2

• 1

• 0

What is the discriminant of  $3x^{2\ }-4x+2=0$  ?

• -40

• -8

• 40

• 8