Graphing in Slope-Intercept Form
Overview
Goal. Graph a line directly from y = mx + b, compute slope from two points, and interpret slope as a rate and the intercept as a starting value.
Slope-intercept form (definition). A linear equation written y = mx + b, where m is the slope of the line and b is its y-intercept.
Lesson Notes
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Lesson Video
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Interactive Activity
Goal. Graph a line straight from y = mx + b, compute a slope from two points, and read slope and intercept off a graph — including slope as a rate in data.
Slope-intercept form (definition). A linear equation written y = mx + b, where m is the slope of the line and b is its y-intercept.
Graphing in Slope-Intercept Form — Interactive ActivityOpen ›
Check It on a Calculator
Desmos.
1. Type the equation or function you are working with.
2. Read the graph, the table, or the solution Desmos shows.
3. Compare with your own work before you trust it.
TI-84.
1. Press Y= and enter the left and right sides as Y1 and Y2.
2. Press GRAPH to see both sides.
3. Use 2nd TRACE, then intersect or value, to read the key point.