ABSTRACT
Rearranging each equation into y D mx C c form gives:
y D 1.20x C 1.80 1
y D x 5.0
8.5 5.0
i.e. y D 0.20x 1.70 2 Three co-ordinates are calculated for each equation as shown below:
x 0 1 2 y D 1.20x C 1.80 1.80 0.60 0.60
x 0 1 2 y D 0.20x 1.70 1.70 1.50 1.30
The two lines are plotted as shown in Fig. 30.2. The point of intersection is (2.50, 1.20). Hence the solution of the simultaneous equation is x = 2.50, y = −1.20.
