# Lesson Plan: Equation of a Straight Line: Slope–Intercept Form Mathematics • Third Year of Preparatory School

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to find the equation of a straight line in slope–intercept form given particular information, including its slope, its 𝑦-intercept, points on it, or its graph.

#### Objectives

Students will be able to

- find the slope and -intercept from an equation in the general form ,
- find the equation of a straight line in slope–intercept form given
- the slope and its -intercept,
- the - and -intercepts,
- points on the line,
- the graph of the line,

- check if a point lies on a line,
- determine the slope and - and -intercepts given the slope–intercept form of a line,
- solve problems in a context involving the equation of a line.

#### Prerequisites

Students should already be familiar with

- the distance between two points,
- the midpoint between two points,
- the slope of a line.

#### Exclusions

Students will not cover

- finding the equation of a line in the form ,
- solving simultaneous equations using two straight lines,
- equation of the line perpendicular to another line and passing through a point.