Question

Complete the following table to draw the graph of the equation x − y = 4:

x	______	−1	0
y	0	______	−4
(x, y)	______	______	(0, −4)

Answer 1

x − y = 4 ⇒ y = x − 4

Fill values

y = 0: x − 0 = 4 ⇒ x = 4

When x = -1:

y = −1 −4 = −5

When x = 0:

 y = 0 − 4 = −4

x − y = 4

x	4	−1	0
y	0	−5	−4
(x, y)	(4, 0)	(−1, −5)	(0, −4)