Non-linear equations (one variable)

How many real number solutions does 3k² + k - 1 = 0 have?

• 2

• 1

• 0

Tags

CCSS.HSA-REI.B.4B

How many and what type of roots does the equation below have? (Hint: you can calculate the discriminant to help you answer this!)

 $y=-3x^2-x-6$  

• 2 imaginary roots (0 real roots)

• 2 real roots

• 1 real root

Tags

CCSS.HSA-REI.B.4B

 $-18x=x^2+81$  

Find the discriminant and number  of solutions

• -18 two solution

• 0, one solution

• -9, two solution

• 0, two solutions

• -9, two solutions

Tags

CCSS.HSA-REI.B.4B

Find the value of the discriminant: 4x²-7x+8

• √79
• √-79
• -79
• -7±i√79/8

Tags

CCSS.HSA-REI.B.4B

In the quadratic equation 13x²+2x-4=0, what is the discriminant?

• -202

• -204

• 202

• 204

Tags

CCSS.HSA-REI.B.4B

Find the discriminant of the following quadratic equation;

5x² − 9x − 6 = 0

• 201

• -39

• 241

• 0

Tags

CCSS.HSA-REI.B.4B

2 For the function below, is the discriminant positive, negative, or zero?

y = x² + 4x + 4

• Positive

• Negative

• Zero

Tags

CCSS.HSA-REI.B.4B

Use the discriminant to determine the number of solutions 4x² + 4x + 1 = 0 has?

• 0

• 1

• 2

• More than 2

Tags

CCSS.HSA-REI.B.4B

If the discriminant is negative, you will have....

• two real solutions
• two irrational solutions
• two imaginary solutions
• one solution

Tags

CCSS.HSA-REI.B.4B

What is the value of the discriminant of 6x² − 2x − 3 = 0

• 76

• 29

• 68

• none of these

Tags

CCSS.HSA-REI.B.4B