Chapter 1
Algebra
Course: Sat Prep
Subject: Math
Chapter: Algebra
By the end of this lesson, you will be able to:
- Write the equation of a line in slope-intercept form.
- Write the equation of a line in point-slope form.
- Write the equation of a line in standard form.
- Convert equations from one form to another.
- Determine the equation of a line from its graph, slope, and points.
- Write equations of parallel and perpendicular lines.
- Interpret linear equations in real-world contexts.
A linear equation describes a straight-line relationship between two variables. Every point on the line satisfies the equation, and every linear equation represents a unique line on the coordinate plane.
Writing the equation of a line is one of the most frequently tested skills on the Digital SAT. Questions may ask you to determine the equation from a graph, two points, a slope and a point, or information about parallel or perpendicular lines.