Mathematics - Chapter 1A: System of Linear Equations

• Linear Equations are equations where the variables are in the first power.

• Solving method using GC (TI84+CE): PlySmlt2 App

• Presentation of answer: ‘From GC, the solutions are …”

• Most of the questions in this chapter will involve practical problems, where students need to model the system of linear equations.

• In solving this, it would be useful to represent the items with a variable:

• e.g. ‘Let x, y, z represent the number of … ‘

• Remember to put units in the representation (e.g. the number of, the amount of, the price of …)

• Notes:
• Label your equations
• Use suitable notations
• Work in 5 significant figures, answer in 3 s.f.