Estimating answers (age 13+)
Use graphs of linear and quadratic functions to estimate output values for given inputs, find approximate solutions to equations, and interpret graphical information in real-world contexts
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Check understanding
- Read off an approximate y-value for a given x from a plotted curve
- Find approximate solutions to an equation by identifying where a graph crosses the x-axis or another line
- Interpret a real-world graph (e.g., distance–time) to answer contextual questions
“Can your child use a graph — whether a straight line or a curve — to read off an answer to an equation approximately, rather than solving it algebraically?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Algebra
- Age range
- Ages 13–14
Standards