CCSS.Math.Content.HSA.REI.B.4

When do you use the plus or minus symbol?
±

• After taking the square root of both sides
• After adding the square to both sides
• After taking half of b
• After setting the equation equal to zero

Tags

CCSS.Math.Content.HSA.REI.B.4

In the equation x² – 6x + 8 = 0, what are the solutions for x?

• {4,2}
• {4,-2}
• {-4,2}
• {-4,-2}

Tags

CCSS.Math.Content.HSA.REI.B.4

Convert x²-9x+20 to factored form and solve.

• (x-10)(x+2); x=-2, 10
• (x+4)(x+5); x=-5, -4
• (x-4)(x-5); x=4, 5
• Not factorable

Tags

CCSS.Math.Content.HSA.REI.B.4

What are the zeros of the function below?
(x - 6)(2x + 4) =0

• x = -6, x = -4
• x = 6, x = -2
• x = 4, x = 6, x =2
• cannot be determined

Tags

CCSS.Math.Content.HSA.REI.B.4

Does
y = -4x²
have a maximum or minimum value?

• maximum
• minimum

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve
 3x² + 5x - 12 = 0

• x = -4/3, x = 3
• x = 4/3, x = -3
• x = -1, x = 4
• x = 1, x = -4

Tags

CCSS.Math.Content.HSA.REI.B.4

The discriminant of a quadratic equation is 0.  How many solutions will it have?

• 2 Real Solutions
• 1 Real Solution
• No Real Solutions
• Cannot be determined

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve.
 2x² + 7x = 15

• -1.5 or 5
• No Solution
• -5 or 1.5
• 0.7 or 5

Tags

CCSS.Math.Content.HSA.REI.B.4

What is the solution set to x² = 2x – 5?

• {±i}
• {2 ± 2i}
• {1 ± 2i}
• {1, 2}

Tags

CCSS.Math.Content.HSA.REI.B.4

Identify the values of A, B, and C

10p² + 7p - 20 = 0

• A=1, B=7, C=-20

• A=10, B=7, C=20

• A=10, B=-7, C=-20

• A=10, B=7, C=-20

Tags

CCSS.Math.Content.HSA.REI.B.4