Question

Solve the following simultaneous equations using Graphical method :
(iii) 4 x = y $-$ 5 ; y = 2x + 1

Answer 1

Table for the equation 4 x = y $-$ 5:

x	0	$-$1.25
y	5	0

Table for the equation y = 2x + 1:

x	0	$-$0.5
y	1	0

The graphs of these two equations are drawn as follows:



The graphs of the equation 4x = y $-$ 5 and y = 2x + 1 intersect each other at ($-$2, $-$3).
∴ x = $-$2 and y = $-$3