Chapter 1
Chapter 1 Basic Math
Course: Ged Test Prep
Subject: Mathematics
Chapter: Chapter 4 Graphs And Functions
Equation of a line from two points
The equation of a line passing through two points in the coordinate plane can be determined using the slope-intercept form of a linear equation, y = mx + b, where m is the slope and b is the y-intercept. The slope of the line can be calculated using the formula: m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are the coordinates of the two points.
Once the slope is calculated, the equation of the line can be determined by substituting the slope and the coordinates of one of the points into the slope-intercept form. The equation will take the form: y - y1 = m(x - x1).
Examples 1. Given two points A(2, 3) and B(5, 7), calculate the slope: