Alg2 Extra SBA # 4 HW March 4, 2024

A function has a discriminant of 4.

How many x-intercepts does it have?

• 0

• 1

• 2

• 4

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

What is the discriminant of

-2x² − x − 1 = 0 ?

• 76

• -7

• 9

• none of these

Tags

CCSS.HSA-REI.B.4B

For the function above, is the discriminant positive, negative, or zero?

• Positive

• Negative

• Zero

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Determine the value of the discriminant and name the nature of the solution for the following:

x² + 2x - 63

• 256 - 2 reals

• √(-256 - 2 imaginary solutions

• √(137) - 2 reals -

• 123 - 2 reals -

Tags

CCSS.HSA-REI.B.4B

Solve Using the Quadratic Formula
 x² + 4x - 40 = -8

• -10 & -4
• -4 & 10
• -8 & 4
• 8 & -4

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

What do you do to the b value to correctly complete the square?

• square it
• divide it by 2 and square the result
• divide it by 2 and take the square root of the result
• divide it by 2 only

Tags

CCSS.HSA-REI.B.4B

Complete the square for

x² + 12x + ____

(find the missing number in the blank)

• x² + 12x + 144

• x² + 12x + 36

• x² + 12x - 36

• x² + +12x - 144

Tags

CCSS.HSA-REI.B.4B

Complete the square for

x² - 14x + ____

(find the missing value that goes in the blank)

• - 196

• 49

• - 49

• 28

Tags

CCSS.HSA-REI.B.4B

• x = 14

• x = 98

• x = -14, 14

• x = 14 and 98

Tags

CCSS.8.EE.A.2