Core idea
Slope=(y₂−y₁)/(x₂−x₁). Point-slope form: y−y₁=m(x−x₁).
Worked check
Through (2,3) with slope 4: y=4x−5.
Practice
- Show each step and state any domain or assumption.
- Check the result by substitution, estimation or a second method.
CBSE Class XI · Academic Session 2026–27
Slope=(y₂−y₁)/(x₂−x₁). Point-slope form: y−y₁=m(x−x₁).
Slope=(y₂−y₁)/(x₂−x₁). Point-slope form: y−y₁=m(x−x₁).
Through (2,3) with slope 4: y=4x−5.