6th Domain 3 Expressions and Equations

Which graph corresponds with the inequality x > 10?    

• A
• B
• C
• D

Juan’s distance varies directly with the number of hours he drives.  The data is shown in the graph below.  If x = number of hours driven, and y = miles, which equation models Juan’s direct variation?

• y = 80x
• y = 40x
• y = 40 + x
• y = 80 + x

What is the value of x when 18x = 72?

• x = 1296
• x = 54
• x = 90
• x = 4

Solve. x + 3/4 = 6  3/4

• x = 7 1/2
• x = 6 6/8
• x = 6
• x = 9

Solve.  4x = 16

• x = 12
• x = 20
• x = 4
• x = 64

Solve.  x/3 = 15

• x = 45
• x = 5
• x = 12
• x = 18

Solve.  x - 7 = 11

• x = 4
• x = 77
• x = 5
• x = 18

Which equation represents the relationship described in the table?

• y = 1x
• y = x + 2
• y = 2x
• y = x - 2

A number increased by 15 is 32.  Find the number.

Which equation can be used to solved this problem?

• x + 32 = 15
• x + 15 = 32
• x - 15 = 32
• x - 32 = 15

Solve.  x + 4 = 12

• x = 16
• x = 48
• x = 8
• x = 3