Discriminant - March 21

Front

What does the discriminant tell us?

Back

The number and type of solutions.

Front

What is the formula for the discriminant?

Back

b² - 4ac.

Front

What is the discriminant for the equation 5x² + x - 2 = 0?

Back

None of these.

Front

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

Back

-7.

Front

Given the equation 10x² - 6x = 0, what is the value of C?

Back

0.

Front

If the discriminant is positive, what does it indicate about the solutions of the quadratic equation?

Back

There are two distinct real solutions.

Front

If the discriminant is zero, what does it indicate about the solutions of the quadratic equation?

Back

There is exactly one real solution (a repeated root).

Front

If the discriminant is negative, what does it indicate about the solutions of the quadratic equation?

Back

There are no real solutions (the solutions are complex).

Front

What is the significance of the discriminant in the quadratic formula?

Back

It determines the nature of the roots of the quadratic equation.

Front

How do you calculate the discriminant for the quadratic equation ax² + bx + c = 0?

Back

Use the formula b² - 4ac.