Question

Draw the graphs of the following equation, on the same co-ordinate system.

(i) y = x
(ii) y = $-$x
(iii) y = 2x
(iv) y = $-$2x

Answer 1

(i) Given: y = x
The table with values of x and y satisfying the given equation is shown below:

x	0	2
y	0	2

(ii) Given: y = $-$x
The table with values of x and y satisfying the given equation is shown below:

x	0	$-$2
y	0	2

(iii) Given: y = 2x
The table with values of x and y satisfying the given equation is shown below:

x	0	1
y	0	2

(iv) Given: y = $-$2x
The table with values of x and y satisfying the given equation is shown below:

x	0	$-$1
y	0	2

The graph of the given equations is as shown :