8.16 PRACTICE

Front

What is an independent variable?

Back

An independent variable is a variable that is manipulated or changed in an experiment to test its effects on the dependent variable.

Front

What is a dependent variable?

Back

A dependent variable is a variable that is measured or observed in an experiment, and it is affected by changes in the independent variable.

Front

In the equation A = 30d, what does A represent?

Back

A represents the amount of money saved.

Front

In the equation A = 30d, what does d represent?

Back

d represents the number of days babysat.

Front

How does watching TV during studying affect a student’s test grades?

Back

This question investigates the relationship between the independent variable (TV watching) and the dependent variable (test grades).

Front

Identify the independent variable in the statement: 'The number of hours needed to finish the project depends on the length of the road.'

Back

The independent variable is r = the length of the road.

Front

Identify the dependent variable in the statement: 'The number of hours needed to finish the project depends on the length of the road.'

Back

The dependent variable is h = the number of hours needed.

Front

What is the rule for the relation if y = x + 7?

Back

This equation shows a linear relationship where for every increase of 1 in x, y increases by 1.

Front

What does the slope of a linear equation represent?

Back

The slope represents the rate of change of the dependent variable with respect to the independent variable.

Front

What is a table of values in relation to functions?

Back

A table of values lists pairs of input (x) and output (y) values that correspond to a function.