Students learn how to plot the equation of a straight line using two points.
Later, as learning progresses they use straight lines to solve a pair of simultaneous equations.
Differentiated Learning Objectives
- All students should be able to plot a straight-line graph in the form ax+by=c using two points on the axes.
- Most students should be able to plot a positive or negative graph in the form ax±by=c using two points on the axes.
- Some students should be able to plot graphs in the form of ±ax±by=±c where the variables are not integers.
