Independent and Dependent Variable Math Function

Given this table of the function f(x), what is the dependent variable?

• Number of weeks

• Pounds of soil

Given this table of the function f(x), find x when f(x)=15 and explain what it means in context.

• f(1) = 15 means the farmer increases his soli by 15%

• f(15) = 1 means after 15 weeks the farmer has 1 pound of soil.

• f(1) = 15 means after 1 week the farmer has 16 pounds of soil.

• f(1) = 15 means after 1 week the farmer has 15 pounds of soil.

Translate the following statement into an ordered pair: f(2) = -3

• (-3, 2)

• (2, -3)

• (f(2), -3)

• (-3, f(2))

The math club goes to an amusement park. Student tickets cost $10 each. The bus costs $28. This is expressed as f(x) = 10x + 28. Find f(10) and explain what it means.

• f(10) = 100; It costs $4100 for 10 students to go on the trip.

• f(10) = 128; It costs $128 for 10 students can go on the trip.

• f(128) = 10; It costs $10 for 128 students to go on the trip.

• f(10) = 128; It costs $10 for 128 students can go on the trip.

What does f(1990)=214 mean in the context of the problem?

• In 1990 there were 214 million people with health insurance

• In 214, there were 1990 people with health insurance

• When there are 1990 people, the year is 214

• None of these

Determine which is the INDEPENDENT variable: the number of minutes running or the amount of calories burned

• Number of minutes running

• number of calories

• They are both

• neither one is

Determine which is the DEPENDENT variable: the grade made on your math test or the number of minutes you spent studying

• Grade on math test

• number of minutes

• Both are

• Neither are

Determine which is the INDEPENDENT variable: the grade made on your math test or the number of minutes you spent studying

• neither are

• both are

• grade on the test

• number of minutes

Name the INDEPENDENT variable from the table below.

• words

• minutes

Which of the following is the label for the independent variable.

• Money Collected

• Raising Money

• Boxes Sold

• None of the above