Grade 6 1.12 Exploring Relationships Between Variables

What is the dependent variable in a relationship?

• The variable that changes on its own

• The variable you control

• The variable that depends on the independent variable

• A pair of values (x, y)

Which variable typically goes on the x-axis in a graph?

• Dependent variable

• Result

• Independent variable

• Function

Which equation represents earning $7.50 per hour?

• y = 7.5 + x

• y = x ÷ 7.5

• y = 7.5x

• y = x − 7.5

Which equation fits this table?

x: 1, 2, 3

y: 6, 12, 18

• y = 3x

• y = 6x

• y = 9x

• y = x + 6

A graph shows the points (0, 0), (1, 5), (2, 10), (3, 15). What’s the relationship?

• y = 15x

• y = 5x

• y = x + 5

• y = x − 5

If y = 2x + 4, what is the value of y when x = 5?

• 10

• 12

• 14

• 16

In the equation y = 9x, what is the independent variable?

• 9

• x

• y

• The total

Which word best describes a variable you can control or change in an experiment?

• Coordinate

• Output

• Independent variable

• Dependent variable

Which equation matches this pattern? (1, 4), (2, 8), (3, 12)

• y = 4x

• y = x + 4

• y = x − 4

• y = 3x + 1

Who earns more when x = 4? A: y = 3x + 2 or B: y = 4x

• A

• B

• They earn the same

• Not enough info