22-3 and 22-4 Formative Assessment

Front

What is the equation to find the cost (t) of downloading n songs if each song costs $0.99?

Back

t = 0.99n

Front

What is the equation that represents the relationship between x and y if y is 3 more than x?

Back

y = x + 3

Front

If Nick runs laps around a track and the number of laps (L) is half the number of minutes (M) he runs, what is the equation?

Back

L = M / 2

Front

In a relationship between gallons of gas and miles driven, which quantity is dependent?

Back

Miles driven

Front

If r = q + 10.1, what does the table showing values of q and r need to represent this relationship?

Back

The table must show values where r is always 10.1 more than q.

Front

What does the term 'dependent variable' mean in a mathematical relationship?

Back

A dependent variable is the outcome that depends on the value of another variable.

Front

What is the equation to find the total cost (t) if each item costs $5 and you buy n items?

Back

t = 5n

Front

If y = 2x + 1, what is the value of y when x = 3?

Back

y = 7

Front

What is the meaning of the term 'independent variable'?

Back

An independent variable is the variable that is changed or controlled in an experiment.

Front

If the relationship between two variables is linear, what does that imply about their graph?

Back

The graph will be a straight line.