Math 9 reviewer for Summative test

Solve the equation by factoring.

• x = {3,8}

• x = {-3,8}

• x = {3,-8}

• x = {-3,-8}

Solve the equation by factoring.

• x = {1}

• x = {-1}

• x = { }

• no solution

How many solutions can a quadratic have?

• 1 solution

• 3 solutions

• 0 solutions

• 2 solutions

What can the roots to a quadratic equation be called?

• zeros

• solutions

• x-intercepts

• none of the choices

What is the quadratic formula?

• 
• 
• 
• 

What is the axis of symmetry formula?

• y = mx+b

• y = ax²+bx+c

• b² - 4ac

• x = -b/2a

Solve the equation using the quadratic formula.

x² + 7x = x - 10

• -6/2 + √4

• -6/2 - √4

• no solution

• ∅

Solve the equation using the quadratic formula.

4x² +9x = 12x

• x = {0, 3/4}

• x = {0, -3/4}

• x = {0, 4/3}

• no solution

Use the discriminant to find the number of solutions for the following equation.

y = x² +10x + 25

• 2 solutions

• 1 solution

• 0 solutions

Use the discriminant to find the number of solutions for the following equation.

y = -3x² +5x - 8

• 2 solutions

• 1 solution

• 0 solutions