©G Dear 2009 – Not to be sold/Free to use General Mathematics Preliminary Modelling Linear Relationships Graphing Linear Functions Stage 6 - Year 11 Press Ctrl-A ©G Dear 2009 – Not to be sold/Free to use

Graphing Linear Functions (1/3) Y = 2x + 1 Independent Variable The variable that we can replace. Goes on the top row of the table x Goes on horizontal axis. 0 1 2 y 1 3 5 Dependent Variable y The variable that depends on the other. Goes on the bottom row of the table x Goes on vertical axis.

Graphing Linear Functions (2/3) W H 10 20 30 400 W 150 300 450 300 200 100 10 20 30 H

Graphing Linear Functions (3/3) C = 3n + 8 C n 1 2 3 20 C 11 14 17 15 10 5 1 2 3 n