Mixed Review For Final Exam Quadratic Equations

What is the vertex?

• (-2,0)

• (0,0)

• (0,-4)

• (2,0)

• a= 1, b= 2, c= -9

• a= 2, b= -1, c= 9

• a= -9, b= 2, c= -1

• a= -1, b= 2, c= -9

• upwards

• downwards

• standard form

• vertex form

• factored form

• slope-intercept form

What are the x-intercepts (zeros)?

• (-2,0) and (2,0)

• (0,2) and (0,-2)

• (0,-4)

• (-2,-4) and (2,-4)

Does the function open up or down?

• up

• down

What is the equation for the axis of symmetry?

• x=-1

• x=8

• x=0

• y=-1

What is this formula?

• This is the speed of light formula.
• This is the quadratic formula.
• This is the zero product property.
• This is scary.

What is the first step to solving THIS equation by completing the square?

a² + 10a + 21 = 0

• Set the equation equal to zero

• Divide 10 by 2 and add the result to both sides

• Add a² and 10a together

• Subtract the 21

What are some other names for the SOLUTIONS of a quadratic equation?

• y-intercepts

• roots

• x-intercepts

• zeros