Question

Find the values.

y = 3x + 1

x	− 1	0	1	2
y

Answer 1

Let y = 3x + 1 = 0

(i) x = −1, y = 3(−1) + 1 = 0

∴ y = −2

(ii) x = 0, y = 3(0) + 1 = 0

∴ y = 1

(iii) x = 1, y = 3(1) + 1 = 0

∴ y = 4

(iv) x = 2, y = 3(2) + 1 = 0

∴ y = 7

y = 3x + 1

x	−1	0	1	2
y	−2	1	4	7