1. ©G Dear 2009 – Not to be sold/Free to use
General Mathematics
Preliminary
Applications of
Area and Volume
Graphing
Simultaneous
Equations
Stage 6 - Year 11
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©G Dear 2009 – Not to be sold/Free to use

2. Simultaneous Equations (1/2)
Simultaneous Equations have their solution where the lines cross. y 1 2 3 4 5 6 7 8 9
Simultaneous Solution of
y=-2x+7 and y=0.5x+2 is
(2,3)
y=0.5x+2
y=-2x+7
(2,3) x

3. Simultaneous Equations (2/2)
Find the simultaneous solution of y=x+2 and y=2x.
y=x+2 x 2 4 y y 2 4 6 1 2 3 4 5 6 7 8 9
y=2x
y=2x
y=x+2 x 2 4 y 4 8
Simultaneous Solution of
y=x+2 and y=2x is
(2,4)
(2,4) x