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Jillian walked 0.5 miles before she started jogging at an average pace of 5 miles per hour. The equation d = 0.5 + 5t can be used to relate the total distance, d, in miles to the time, t, that Jillian spent jogging. What are the independent and dependent variables?

The independent variable is distance and the dependent variable is time.
The independent variable is time and the dependent variable is distance.
The independent variable is distance and the dependent variable is speed.
The independent variable is speed and the dependent variable is distance.

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Answer:

  (b)  The independent variable is time and the dependent variable is distance

Step-by-step explanation:

When you have an equation of the form ...

  <single variable or function name> = <expression involving another variable>

we take this to mean the <single variable> is the dependent variable. The <other variable> involved in the expression on the right is considered to be the independent variable. The variable on the left depends on the variable on the right.

Here, that means ...

  • the independent variable is t (time)
  • the dependent variable is d (distance)

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