prepsactSAT & ACT Mastery

Digital SAT Math 800: Heart of Algebra & Advanced Math Masterclass

Lesson: Linear Equations, Slope-Intercept & Parallel/Perpendicular Lines

Linear Equations, Slope-Intercept & Parallel/Perpendicular Lines
22 mins • Full HD Video Lesson
High-Yield Summary & LaTeX Equations

Deep dive into $y = mx + b$, finding intercepts instantly and avoiding trap slope questions.

- Parallel lines: m1=m2m_1 = m_2
- Perpendicular lines: m1×m2=−1m_1 \times m_2 = -1
- Infinite solutions: identical slopes and y-intercepts.

Course Curriculum

0 / 5 Done
Module 1: High-Yield Algebra & Linear Systems
Linear Equations, Slope-Intercept & Parallel/Perpendicular Lines
22m
Systems of Linear Equations & Elimination Shortcuts
28m
Linear Inequalities & Shaded Coordinate Regions
19m
Module 2: Quadratics, Parabolas & Nonlinear Functions
Quadratic Vertex Form & Axis of Symmetry
25m
The Discriminant $\Delta = b^2 - 4ac$ & Number of Real Roots
20m
NK

Narendra Kancharapalli

Lead SAT/ACT Master Instructor