Algebra 1 · Linear Functions
Slope-Intercept Form
Algebra 1 · Linear Functions
Definition
Slope-intercept form is the linear equation y = mx + b, where m is the slope and b is the y-intercept.
Examples
- y = 2x + 3 has slope 2 and y-intercept 3.
- y = -x + 5 has slope -1 and y-intercept 5.
Key rule
Read the slope and y-intercept straight off the equation.
Memory hook
y = mx + b: m is the slope, b is where it starts.