3.6 Using the Quadratic Formula and the Discriminant

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Mathematics

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10th Grade

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Practice Problem

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Hard

Muraad Jawaada

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1 Slide • 10 Questions

3.6 Using the Quadratic Formula and the Discriminant

Sunday, January 10

Multiple Choice

The discriminant is

A. aX² + bX + c

B. b - 4ac

C. b² - 4ac

D. b² + 4ac

Multiple Choice

Solve using the quadratic formula. f(x) = 2x²- 4x + 7

A. (2±2i√10)/2

B. (4±√40)/4

C. (2±i√10)√/2

D. (2±2i√40)/4

Multiple Choice

Multiple Choice

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

A. -2, 3

B. 2, 3

C. 2, -3

D. -2, -3

Multiple Choice

Determine the value of the discriminant and describe the number and type roots for the following:

x² + 7x + 13

A. 101, 2 real roots

B. 3, 2 real roots

C. -101, 2 imaginary roots

D. -3, 2 imaginary roots

Multiple Choice

Determine the values of

a, b, and c for

the quadratic equation:

4x² – 8x = 3

A. a = 4, b = -8, c = 3

B. a = 4, b =-8, c =-3

C. a = 4, b = 8, c = 3

D. a = 4, b = 8, c = -3

Multiple Choice

____________

For the function above, is the discriminant positive, negative, or zero?

A. Positive

B. Negative

C. Zero

D. Not Sure

Multiple Choice

____________

For the function above, is the discriminant positive, negative, or zero?

A. Positive

B. Negative

C. Zero

D. Not Sure

Multiple Choice

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

A. x = -2, 3

B. x = 2, 3

C. x = 2, -3

D. x = -2, -3

Multiple Choice

Determine the value of the discriminant and describe the number and type roots for the following:

x² + 7x + 13

A. 101; 2 real roots

B. 3; 2 real roots

C. -101; 2 imaginary roots

D. -3; 2 imaginary roots

3.6 Using the Quadratic Formula and the Discriminant

Sunday, January 10

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