Interpret a Coordinate Pair in Its Stated Context
Read both axis labels, then translate the ordered pair into a sentence preserving their units.
About 20 minutes, plus any extended practice
Supplied materials
- Paper and a pencil; drawing and spoken explanations are welcome. An adult may read directions and options aloud.
- Supplied worked-case record: On a graph with x in minutes and y in meters, point (4,18) means eighteen meters at four minutes.
- All quantities and shape descriptions are supplied in the worked example and questions; no purchase or personal information is needed.
Learn the idea
Coordinate axes can represent quantities other than directions on a room plan. Read the labels and units before interpreting a pair. In a time–distance graph, x might be minutes and y meters. The pair reports both quantities together; it does not itself prove a trend for times not supplied.
Read both axis labels, then translate the ordered pair into a sentence preserving their units. Use only the supplied point for the requested interpretation. Distinguish a coordinate observation from an unstated prediction beyond the recorded data.
Read labels and units on both axes. A supplied point does not establish an unstated continuous trend. Write each coordinate directly beneath its axis name and unit.
- Write each coordinate directly beneath its axis name and unit.
- Follow the worked example. Point to each number or shape feature and say what it tells you.
- Read both axis labels, then translate the ordered pair into a sentence preserving their units.
- Try the question and then the three practice questions. Check your answers and explain any change you make.
See the method in action
On a graph with x in minutes and y in meters, point (4,18) means eighteen meters at four minutes. It does not mean four meters in eighteen minutes. One point alone does not show whether the motion is constant, so no speed pattern should be invented. Read labels and units on both axes. A supplied point does not establish an unstated continuous trend. Write each coordinate directly beneath its axis name and unit.
Check your reasoning
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Helpful tips
- Read labels and units on both axes.
- A supplied point does not establish an unstated continuous trend.
See the answer and explanation
12 meters at 2 minutes
The first coordinate follows the x-axis label and the second the y-axis label.
Take it further
For x=days and y=pages, interpret (3,24). Expected: 24 pages at day three in the record.
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More practice: try new cases
Choose an answer for each problem. Explain your method on paper, then use the feedback to decide what to revisit.
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Check the subject sources
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