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Overview
7th Grade Math
14. MA.7.AR.4.3
14.1 Reading linear relation graphs
Reading Linear Relation Graphs
Read a linear graph by finding where it crosses the y-axis and how steeply it rises, then write y = mx + b.
What You'll Learn
The y-intercept is where the line crosses the y-axis, at x = 0.
The slope is the rise over run between any two points on the line.
Move right from the y-intercept and measure how far the line rises.
Combine the y-intercept (b) and slope (m) to write y = mx + b.
This reverses building a table of values or graph from an equation.
What You'll Practice
1
Estimating values from graphs by reading x and y coordinates
2
Solving word problems about profit, distance, and wages using graphs
3
Creating linear equations and substituting values to find unknowns
4
Plotting data points from tables and drawing best-fit lines
Why This Matters
Reading linear graphs is essential for analyzing trends in science, business, and everyday situations like budgeting or tracking progress. This skill helps you visualize relationships between variables and solve real-world problems faster than working with numbers alone.
Before You Start — Make Sure You Can:
This Unit Includes
9 Video lessons
Learning resources
Skills
Linear Equations
Graphing
Coordinate Plane
Slope
Y-intercept
Data Interpretation
Word Problems
FL Curriculum Aligned