Big Ideas Math Algebra 1, 2015
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Big Ideas Math Algebra 1, 2015 View details
5. Graphing Linear Equations in Slope-Intercept Form
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Exercise 48 Page 144

If we represent time on the x-axis, what would go on the y-axis?

See solution.

Practice makes perfect

Here we will look at two possible solutions, but it is okay if you think of something else!

First Solution

We can let the time t that it took to get to the beach be shown on the x-axis and the distance d from the beach be on the y-axis. Then we have the following graph.

The line segment begins at (0,300) because no time has passed when we first begin the journey and we are 300 miles away from the beach. It continues down and to the right until our journey has finished at (6,0), 6 hours have gone by and we are now 0 miles away from the beach.

Second Solution

We can let the time t that it took to get to the beach be shown on the x-axis and the distance d from home be on the y-axis. Then we have the following graph.

The line segment begins at (0,0), because no time has passed when we first begin the journey and we are 0 miles from home. It continues up and to the right until our journey has finished at (6,300), 6 hours have gone by and we are now 300 miles from home.