Graphing & Writing Linear Equations

Skills to Master

  • N.Q.1 – Label and Scale Graphs
  • F.IF.7a – Graph Linear Function Transformations Expressed Symbolically, and Show Intercepts.
  • F.IF.2 – Evaluating Linear Functions
    • From an equation or a graph
  • G.GPE.5 – Parallel & Perpendicular Lines
    • Point-slope form & graphing

Notes

Slope-Intercept Form of a Linear Equation
Identifying the Parameters, m (slope) and b (y-intercept).
The slope, in this example, is 2;
however, you can also write it as 2 / 1.
The rise is 2, the run is 1.
Remember: when there’s no run, put a 1.
Start with the b (y-intercept), then use the slope to graph another point. It is best to RISE before you run, keeping the denominator positive. In this example, they show a run, then a rise.

Videos

Video # 1 – Writing Equations from a Graph

Writing linear equations from a graph.
In this video, equations are in slope-intercept form.

Video # 2 – Graphing Linear Equations from an Equation (in Slope-Intercept Form)

Graphing linear equations from an equation written in slope-intercept form.