Mid-Chapter Quiz
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The number of dog biscuits left is dependent on the number of tricks a dog performs. This means that the number of biscuits B is the dependent variable and the number of tricks t is the independent variable.
The relationship between the two variables can be stated in words as: With each trick performed, the number of biscuits decreases by 3.
Let's look for a pattern of change in the given table.
To show our data graphically, we can plot the points on a coordinate plane. Notice that we cannot draw a line to represent this function because a dog cannot do a partial trick, so only whole numbers make sense in this context.