1st Quarter: Homework#3

How many real roots does the quadratic equation  $x^2-17x+16=0$ have?

• 0

• 1

• 2

• 3

How many real roots does the quadratic equation  $x^2-4x+4=0$ have?

• 0

• 1

• 2

• 3

Tags

CCSS.HSA-REI.B.4B

How many real roots does the quadratic equation  $3x^2+2x+5=0$ have?

• 0

• 1

• 2

• 3

Tags

CCSS.HSA-REI.B.4B

Which of the following is the nature of the roots of the quadratic equation if the value of its discriminant is zero?

• The roots are not real.

• The roots are irrational and not equal.

• The roots are rational and not equal.

• The roots are rational and equal.

Tags

CCSS.HSA-REI.B.4B

Which of the following is the nature of the roots of the quadratic equation if the value of its discriminant is negative?

• The roots are not real.

• The roots are rational and equal.

• The roots are rational and not equal.

• The roots are irrational and not equal.

Tags

CCSS.HSA-REI.B.4B

Which of the following is the nature of the roots of the quadratic equation if the value of its discriminant is positive and a perfect square?

• The roots are not real.

• The roots are rational and equal.

• The roots are irrational and not equal.

• The roots are rational and not equal.

Tags

CCSS.HSA-REI.B.4B

The discriminant of a quadratic equation is 121. Which of the following is true about its roots?

• The roots are real, rational and equal.

• The roots are imaginary and unequal.

• The roots are real, irrational and unequal.

• The roots are real, rational, and unequal.

Tags

CCSS.HSA-REI.B.4B

The discriminant of a quadratic equation is -18. Which of the following is true about its roots?

• The roots are real, rational and equal.

• The roots are imaginary and unequal.

• The roots are real, irrational and unequal.

• The roots are real, rational, and unequal.

Tags

CCSS.HSA-REI.B.4B

The discriminant of a quadratic equation is 0. Which of the following is true about its roots?

• The roots are real, rational and equal.

• The roots are imaginary and unequal.

• The roots are real, irrational and unequal.

• The roots are real, rational, and unequal.

Tags

CCSS.HSA-REI.B.4B

Given the equation, $x^2-3x+6=0$ , which of the following is the nature of its roots?

• The roots are real, rational and equal.

• The roots are imaginary and unequal.

• The roots are real, irrational and unequal.

• The roots are real, rational, and unequal.

Tags

CCSS.HSA-REI.B.4B