Expressions and Equations Review

What is the equation of this line?

• y= 3x+1

• y= -x+3

• y= 1/3x-1

• y= -1/3x+1

What appears to be the solution to the system of equations shown in the graph below?

• (-4,-2)

• (-1,6)

• (-2,-6)

• (4,8)

Tags

CCSS.8.EE.C.8B

Which equation is equivalent to 
12(4x-5)=18?

• 4x-5=6

• 4x-5=30

• 48x+60=18

• 48x-60=18

Tags

CCSS.8.EE.C.7A

Solve

• 125

• 5

• 1/5

• 625

Tags

CCSS.8.EE.A.1

If the mean of the numbers 4, 8, x, and 12 is 9, what is the value of x?

• 12

• 10

• 11

• 13

Tags

CCSS.6.EE.B.7

What is the value of y in the following system of equations:
y=2x
y=4x-8

• 0

• 4

• 8

• 10

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution of the following system?  (The intersection)

• (-0.5,8.5)

• (-0.5,0.5)

• (0,4)

• (2,-14)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The equation y=50x+30 represents the amount of money, y, in Amy’s savings account over time, x. The equation y=30x+50 represents the amount in Sally’s savings account. How does the graph of Sally’s account differ from the graph of Amy’s account?

• The graph representing Sally’s account starts lower on the y-axis.

• The graph representing Sally’s account starts closer to the origin.

• The graph representing Sally’s account is steeper.

• The graph representing Sally’s account is flatter.

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

The points (–3, –5), (0, 4), and (3, 13) lie on the same line. Which equation describes the function for that line?

• y=2x+1

• y = 3x + 4

• y = x + 4

• y = x + –2

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Evaluate:
3⁴ x 3^-2

• 1/3

• 3

• 9

• 1/9

Tags

CCSS.8.EE.A.1