Quiz about Solve Quadratic Formula

Question 1

A function has a discriminant of 25.
______________
How many solutions does it have?

Accepted Answer

2

Answer

0

Answer

1

Answer

5

Question 2

A function has a discriminant of -3.
______________
How many x-intercepts does it have?

Accepted Answer

0

Answer

1

Answer

2

Answer

3

Question 3

If the discriminant is zero you will have

Accepted Answer

1 real solution

Answer

no real solutions

Answer

two real solutions

Answer

1 imaginary solution

Question 4

Solve using the Quadratic Formula:
(Hint: Set the equation = to 0)

$$x^2+4x-40=-8$$

Accepted Answer

$$x=-8, 4$$

Answer

$$x=-10, -4$$

Answer

$$x=-4, 10$$

Answer

$$x=-4, 8$$

Question 5

Solve using the Quadratic Formula

6x²+ 12x - 1 = 0

Accepted Answer

x = 0.08, -2.08

Answer

x = -0.08, 2.08

Answer

x = -0.08, -1.91

Answer

x = 0.08, 1.19

Question 6

Question 6.

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 7

Identify the values of A, B, and C

10p²+ 7p - 20 = 0

Accepted Answer

A=10, B=7, C=-20

Answer

A=1, B=7, C=-20

Answer

A=10, B=7, C=20

Answer

A=10, B=-7, C=-20

Question 8

What does the discriminant determine?

Accepted Answer

The number of Solutions

Answer

Whether the graph goes up or down

Answer

The vertex

Answer

The y-intercept

Question 9

What is the discriminant in the Quadratic Formula?

Accepted Answer

b2 - 4ac

Answer

-b + 4ac

Answer

b - 4ac

Answer

-b2 - 4ac

Question 10

If the discriminant is positive, how many solutions does the graph have?

Accepted Answer

2

Answer

1

Answer

0

Question 11

If the discriminant is zero, how many solutions does the graph have?

Accepted Answer

1

Answer

2

Answer

0

Question 12

If the discriminant is negative, how many solutions does the graph have?

Accepted Answer

0

Answer

2

Answer

1

Question 13

Solve using the Quadratic Formula:

x² + 4x = -3

Accepted Answer

x = -1 and x = -3

Answer

x = 1 and x = 3

Answer

x = 6 and x = -2

Question 14

Solve a² - 4a + 4 = 0 using the quadratic formula

Accepted Answer

2

Answer

-2

Answer

4

Answer

-4

Answer

No Solution

Question 15

In order to use the quadratic formula you must first...

Accepted Answer

Get the equation set equal to 0 and identify a, b, & c

Answer

Move the constant to the right side of the equation

Answer

Factor

Answer

Cry because it is scary

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