3.6 Practice

Front

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

Back

2

Front

The discriminant is defined as:

Back

b² - 4ac

Front

Solve using the quadratic formula: 9x² = 4 + 7x

Back

x = 1/3 or x = -4/3

Front

For the function 4x² – 8x = 3, is the discriminant positive, negative, or zero?

Back

Negative

Front

Determine the values of a, b, and c for the quadratic equation: 4x² – 8x = 3

Back

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

Front

What is the quadratic formula?

Back

x = (-b ± √(b² - 4ac)) / (2a)

Front

What does a positive discriminant indicate about the solutions of a quadratic equation?

Back

There are two distinct real solutions.

Front

What does a negative discriminant indicate about the solutions of a quadratic equation?

Back

There are no real solutions.

Front

What does a zero discriminant indicate about the solutions of a quadratic equation?

Back

There is exactly one real solution.

Front

Identify the coefficients a, b, and c in the quadratic equation: 2x² + 3x - 5 = 0

Back

a = 2, b = 3, c = -5