Quadratic Equations with Rational, Irrational, Complex Roots

The discriminant is...

• ax² + bx + c

• b² + 4ac

• b² - 4ac

• b - 4ac

If the discriminant is equal to -7 the roots will be...

• Real, rational & equal

• Real, rational & unequal

• Real, irrational & unequal

• imaginaryl & unequal

If the discriminant is equal to 0 the roots will be...

• Real, rational & equal

• Real, rational & unequal

• Real, irrational & unequal

• imaginaryl & unequal

If the discriminant is equal to 49 the roots will be...

• Real, rational & equal

• Real, rational & unequal

• Real, irrational & unequal

• imaginary &unequal

The roots of x² + 3x - 1 = 0 will be

• Real, rational & equal

• Real, rational & unequal

• Real, irrational & unequal

• imaginary & unequal

The roots of 4x² - 1 = 0 will be

• Real, rational & equal

• Real, rational & unequal

• Real, irrational & unequal

• imaginary & unequal

The roots of x² -11x +28 = 0 will be

• Real, rational & equal

• Real, rational & unequal

• Real, irrational & unequal

• imaginary & unequal

If the discriminant is less than 0, the roots are____

• Real, rational & equal

• Real & unequal

• imaginary & unequal

If the discrimiant is equal to zero, the roots are______

• Real, rational & equal

• Real & unequal

• imaginary

An equation will have imaginary roots if...

• d = 0

• d ≥ 0

• d > 0

• d < 0