Graphs, Equations, and Tables

A farmer has b bags of potatoes. Each bag of potatoes weighs 50 pounds. Which equation can be used to find t, the total weight of the potatoes in pounds?

• t = 50b

• t = b + 50

• t = b - 50

• t = 50 - b

Which list shows the dependent quantities in the graph?

• 5, 10, 15, 20, 25, 30, 35

• 3, 6, 9, 12, 15, 18, 21

• 1, 2, 3, 4, 5, 6, 7

• 2, 4, 6, 8, 10, 12, 14

Which relationship correctly shows the relationship between the number of girls and the number of boys in each of Ms. Smith's classes?

• b = g + 5

• b = g - 5

• b = g + 2

• b = g - 2

Which graphs show an additive relationship?

• A only

• A & C only

• A & D only

• B & C only

Which equation matches the table?

• y = 3x + 9

• y = x + 9 

• y = x + 3

• y = 12x - 3

Which equation matches the description if x is the number of minutes and y is the total cost.

• y = 1.20

• y= 1.20x

• x = 1.20

• x = 1.20y

Which is the graph of y= -x + 2?

• A

• B

• C

• D

Which graph matches the table?

• A

• B

• C

• D

What does the point (2, 94) represent in this situation?

• Every week, they earn $94.

• After 94 weeks, they save $2.

• After 1 week, they save $47.

• After 2 weeks, they save $94.

A phone company charges a sign-up fee of $3.50, plus $x for every hour the phone is used. If Brian talked on the phone for 12 hours and paid a total of $75.50, which of the following equations can be used to find, x, the hourly rate of the phone plan?

• 3.50 + x = 75.50 

• 3.50 - x = 75.50 

• 75.50 + 12x = 3.50 

• 3.50 + 12x = 75.50