Dependent/Independent Variables, Tables, Equations, and Graphs

The table below shows the relationship between x and y. What equation represents the same relationship?

• y = 4x

• y = x - 9

• y = ¹/4 x

• y = x + 9

What are the dependent quantities represented in this table?

• 0, 2, 4, 6, 8, 10, 12, 14, 16

• 1, 2, 3, 4, 5, 6, 7, 8

• 2, 3, 4, 5

• 6, 9, 12, 15

Your independent variable is graphed on which axis?

• x-axis

• y-axis

• origin

Which is the INCORRECT way to write an equation

• y = 2x

• y = 1 + x

• y = x - 1/2

• x = 3y

What algebraic equation shows the relationship between the independent and dependent variables?

• y = ax

• y = x + 12

• y = -3x

• y = 

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?

• only

• & C only

• & D only

• & C only

Which equation matches the table?

• y = x 

• y = 5x

• y = x - 4

• y = x + 4