Practice Independent Dependent Constant Variables

Which equation matches the table?

• y = 2x

• y = 2x+3

• y = 3x+3

• y = 3x+2

What is the independent variable?

The equation y=16x represents the number of sit ups Adam will do in "x" sets. How many sit ups does Adam do in 4 sets?

• numbers of sit ups

• 16

• number of sets

• y=16x

What is the dependent variable?

The equation y=16x represents the number of sit ups Adam will do in "x" sets. How many sit ups does Adam do in 4 sets?

• number of sets

• number of sit ups

• Adam

• 64

Mrs. Khan makes cookies for the school bake sale. She uses the equation c = 0.75x to determine the cost, c for x cookies. which best represents the constant rate at which cookies are sold at the bake sale?

• 75 cookies per dollar

• $1.50 per cookie

• 1.5 cookies per dollar

• $0.75 per cookie

The graph shows the total money earned at a fundraising car wash. Which equation can be used to find the total earned y for the number of cars washed x?

• y = x + 5

• y = x/5

• y = x - 5

• y = 5x

Nancy can type 50 words per minute. Look at the table below to write an equation that matches the data.

• m=50 + w

• w= 50m

• w= 50 + m

• m= 50 - w

A ​ ​ ​ (a)   variable changes in response to another variable.

• dependent

• independent

What is the independent variable in the statement? The number of pages read, p, and the time spent reading, t

• Independent variable: p

• Independent variable: t

What is the independent variable in the statement?

• Independent variable: p

• Independent variable: c

What is the dependent variable in the statement? The profit, p, and the number of candy bars sold, c

• Dependent variable: p

• Dependent variable: c