How we worked it out
Updated as you change the numbers.
- Slope = rise ÷ run = (y₂ − y₁) ÷ (x₂ − x₁) = (8 − 2) ÷ (4 − 1).
- Intercept b = y₁ − m × x₁.
Method and assumptions
Slope is the change in y per unit change in x. The angle is the arctangent of the slope. Grade as a percentage is slope × 100.
Questions
What is the slope between (1, 2) and (4, 8)?
2. The line is y = 2x.
Sources
Method and figures checked on . Every worked answer on this page is covered by an automated test. Found a mistake? Tell us.