Curriculum placement
Grade 8. This describes the skill, not a learner estimate.
Reading increase and decrease from a graph
Describe increase decrease and linearity in graphs
Problem types
- Match a story to a graph
- Read a distance graph
Builds on
- What makes a relation a function
- Reading scaled picture and bar graphs · Earlier idea
Reading values on a scaled graph extends to reading what the shape of a graph says about a story.
Leads to
- Average rate of change · Extend the idea
Reading where a graph increases or decreases becomes measuring how fast, with the average rate over an interval.
- Piecewise and absolute-value functions · Extend the idea
A graph with rising, flat and falling sections is a function with a different rule on each section.
- Period, amplitude, and midline · Extend the idea
A graph that rises and falls repeatedly describes a periodic situation, and the sinusoid parameters measure that pattern.
Related skills
- Comparing functions · Shared foundations
- Domain and range · Shared foundations
- Evaluating a function · Shared foundations
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