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The following data were collected over one December afternoon in England.
| time after noon (hours) | temperature( |
|---|---|
| 0 | 5 |
| 1 | 3 |
| 2 | 4 |
| 3 | 2 |
| 4 | 1 |
| 5 | -2 |
| 6 | -3 |
| 7 | -4 |
| 8 | -4 |
Which set of axes would you choose to represent these data? Explain your reasoning.
For each set of coordinates, draw and label an appropriate pair of axes, and plot the points.
Discuss with a partner:
Here is a maze in a coordinate plane. The black point in the center is (0, 0). The side of each grid square is 2 units long.
The starting point of the maze is located at the top left of the maze and labeled as point
The coordinate plane can be used to show information involving pairs of numbers.
When using the coordinate plane, we should pay close attention to what each axis represents and what scale each axis uses.
Suppose we want to plot the following points:
The data involve whole numbers, so it is appropriate that each square on the grid represents a whole number.
Here is a possible graph of the data.
Coordinate plane, origin O, horizontal axis, time in hours after midnight, negative 8 to 10 by ones, vertical axis, temperature in degrees celsius, negative 8 to 6 by ones. Points at (negative 4 comma 30), (negative 1 comma negative 2), (zero comma negative 4), (3 comma negative 8).
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