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Question
Find the values.
y = 3x + 1
| x | − 1 | 0 | 1 | 2 |
| y |
Solution
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 |
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