Algebra Final

Given this function. If the output was 21 what was the input?

• -4

• 8

• 12

• -6

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Solve the system of equations:

3x − y = 17

−x + y = −7

• 4,-2

• -7,6

• 2,5

• 5,-2

• No solution

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the equation for the line?

• y=-2x-2

• y=x+2

• y=3x-1

• y=2x+3

What is the inequality of the line shown?

Tags

CCSS.HSA.REI.D.12

Rewrite the following as a sum:

(x+3)²

• x² + 9

• x² -6x -9

• x² + 6

• x² + 6x + 9

Tags

CCSS.HSA.APR.C.4

• (-5, 2)

• (-3,-4)

• (-1,-5)

• (3, 1/2)

• -3, -1/2

• 3, 2/3

• -4, 2

• -5, -2/3

Tags

CCSS.HSA-REI.B.4B

2x + 6 = 14

• x = 4

• x = 10

• x = -4

• x = 3

Tags

CCSS.7.EE.B.4A

What is the error?
3x -9 = 36
     -9     -9
___________
3x      = 27
divide     divide
3             3
x = 9

• Nothing is wrong

• Did not divide by the correct coefficient

• Did not perform the correct inverse operation to isolate 3x

• Did not add correctly

Tags

CCSS.HSA.REI.A.1

Solve the equation
3x = 27. 

• x = 24

• x = 81

• x = 9

• Why are there letters in math?!

Tags

CCSS.6.EE.B.7