Practise the method.
Complete tables of values, plot points and connect gradient and intercept to a straight line.
Example 1
| x | −1 | 0 | 1 | 2 |
|---|---|---|---|---|
| y | −3 | −2 | −1 | ? |
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Answer:
Example 2
| x | −2 | −1 | 0 | 1 |
|---|---|---|---|---|
| y | ? | −2 | −1 | 0 |
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Answer:
Example 3
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Answer: