Quiz about Solving using the Quadratic Formula

Question 1

Solve 2x² = - 7x + 15

Accepted Answer

x = -5, 1.5

Answer

x = -1.5, 5

Answer

No Solution

Answer

x = 0.7, 5

Question 2

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

Accepted Answer

-6.77 and 1.77

Answer

-4.9 and -0.1

Answer

-8.54 and 8.54

Answer

-0.45 and 3.55

Question 3

Solve using the quadratic formula.
2x² - 9x - 35 = 0

Accepted Answer

x = -5/2, x = 7

Answer

x = 7/2, x = -6

Answer

x = -5/2, x =5

Answer

x = -3/7, x =6

Question 4

What are the approximate solutions of 2x²-x+10=0?

Accepted Answer

no solution

Answer

-2, 2.5

Answer

-1.97, 2.47

Answer

-2.5, 2

Question 5

Solve by factoring. 3x²+x-14=0

Accepted Answer

-7/3 , 2

Answer

no solution

Answer

7,-6

Answer

2, -7

Question 6

Question 6.

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 7

Question 7.

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 8

Question 8.

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 9

Solve by using the quadratic formula.

7x² - 26x - 8 = 0

Accepted Answer

x = 4 and x = -2/7

Answer

x = -1 and x = -7/8

Answer

x = -4 and x = 2/7

Answer

x = 4 and x = -7/2

Question 10

Solve for x. Round to the nearest hundredth if necessary.

3x² = 16x + 12

Accepted Answer

x = -0.67 and x = 6

Answer

x = -6 and x = 0.67

Answer

x = 3.33 and x = 18

Answer

x = -3.33 and x = 18

Question 11

Solve for x. Round to the nearest hundredth if necessary.

2x² = -x + 3

Accepted Answer

x = -1.5 and x = 1

Answer

x = -1 and x = 1.5

Answer

x = 1.5 and x = -1

Answer

x = 1 and x = 1.5

Question 12

Solve by the Quadratic Formula:

$$9u^2-11u+7=0$$

Accepted Answer

$$\frac{11\pm\sqrt{131}}{18}$$

Answer

$$\frac{-11\pm\sqrt{131}}{18}$$

Answer

$$\frac{11\pm\sqrt{131}}{-18}$$

Answer

$$\frac{11\pm i\sqrt{373}}{18}$$

Question 13

Solve the following for x by using the Quadratic Formula

2x²+6x=7

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Question 14

Solve the following quadratic equation (round your answer to 2 decimal places)....

x² + 11x + 4 = 0

Accepted Answer

x = -0.38

x = -10.62

Answer

x = -0.38

x = -8.62

Answer

x = -1.38

x = -10.62

Answer

x = -1.38

x = -8.62

Question 15

Solve the quadratic equation by using the quadratic formula.

2x² -3x = -4

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 16

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

Accepted Answer

Option B is correct

Answer

No Real Solution

Answer

C.

Answer

D.

Question 17

If the discriminant is equal to 0, how many solutions are there?

Accepted Answer

1 Solution

Answer

No solutions

Answer

2 Solutions

Answer

Infinite solutions

Question 18

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

Accepted Answer

2 Solutions

Answer

No Solutions

Answer

1 Solution

Answer

Infinite Solutions

Question 19

If the discriminant is equal to -2, how many solutions are there?

Accepted Answer

No Solutions

Answer

1 Solution

Answer

2 Solutions

Answer

Infinite Solutions

Question 20

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

Accepted Answer

2

Answer

0

Answer

1

Answer

5

Question 21

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

Accepted Answer

x = 2, -3

Answer

x = -2, 3

Answer

x = 2, 3

Answer

x = -2, -3

Question 22

If the discriminant is negative, then the quadratic has:

Accepted Answer

No Real Solution

Answer

1 Real Solution

Answer

2 Real Solutions

Answer

Half a Solution

Question 23

Solve Using the Quadratic Formula
x² + 4x - 40 = -8

Accepted Answer

-8 & 4

Answer

-10 & -4

Answer

-4 & 10

Answer

8 & -4

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics