Slope-Intercept Form

Finding Slope & Intercept

Example 1

Find the equation of the line graphed below.

find_slope_intercept_ex1-1

Step 1. Find b

(0,-2) is the y-intercept so b = -2

Step 2. Find slope, m

find_slope_intercept_1-2

rise = 3 and run = 1 so m = find_slope_intercept_1-3 or 3

Step 3. Write the equation using the slope-intercept form.

y = mx + b
y = 3x - 2