Quadratics + Systems Quiz: REVIEW

Determine the values of a, b, and c for the following quadratic equation.

4x² – 8x = 3

• a = 4, b = - 8, c = 3

• a = 4, b = - 8, c = -3

• a = 4, b = 8, c = 3

• a = 4, b = 8, c = -3

Use the quadratic formula to solve 2x² + 2x - 12.

• -2 & 3

• 2 & 3

• 2 & -3

• -2 & -3

If the graph of a quadratic does not intercept the x-axis at any point, then it has:

• 1 Real Solution

• 2 Real Solutions

• No Real Solutions

Use the quadratic formula to solve the equation below.

x² + 4x - 40 = -8

• -10 & -4

• -4 & 10

• -8 & 4

• 8 & -4

Use the quadratic formula to solve the equation.

• A

• B

• C

• D

Use the quadratic formula to solve the equation.

9x² = 4 + 7x

• 
• 
• 
• No solution

Which of the following formulas represent the discriminant of a quadratic equation?

• $ax^2+bx+c$

• $\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

• $b^2-4ac$

• $\frac{-b}{2a}$

Tags

CCSS.HSA-REI.B.4B

If the discriminant is equal to 4, how many solutions are there?

• No Solutions

• 1 Solution

• 2 Solutions

• Infinite Solutions

Tags

CCSS.HSA-REI.B.4B

What is the discriminant of -2x² − x − 1 = 0

• 76

• -7

• 9

• none of these

Tags

CCSS.HSA-REI.B.4B

If the discriminant is positive, then the solution will be

• one real solution

• two real solutions

• no real solutions

• one imaginary solution

Tags

CCSS.HSA-REI.B.4B