Independent and Dependent Variables

Which equation matches the table?

• y = x 

• y = 5x

• y = x - 4

• y = x + 4

Look at the table below. Write an equation to match the pattern between m, minutes and bubbles blown, b.

• b = 12m

• b= m +12

• b = m ÷ 12

• none of these

Write the equation for the table...

• y=x-4

• y=x+8

• y=x-8

• y=x+4

Write the equation for the table...

• x=y+13

• y=x+13

• y=x-13

• x=y-13

When Jessica studies for her math test she earns a better grade. Which is the dependent variable in this situation: the hours studied or the math test grade?

• Hours studied

• They are both dependent

• Neither

• Math test grade

Mike reads 5 pages an hour. The independent variable is time. What is the dependent variable?

• the number of books

• the number of hours

• the number of pages

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

Write an equation that represents the relationship between the variables in the table.

• There is no equation from this table.

• t=10d

• t=10-d

• d=t+10

A(n) _____________ variable depends on or is changed by another variable.

• dependent

• independent

In the table, Bubbles is the ______________.

• independent variable

• dependent variable