Question 5 • Mathematics 8
The slope is (2 − 4) ÷ [−2 − (−6)] = −2 ÷ 4 = −1/2. Substituting the point (−2, 2) into y = −1/2x + b gives 2 = 1 + b, so b = 1. Therefore, the line is y = −1/2x + 1, choice B.
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