A line passes through the points (1, 2) and (5, 14). What is its slope?
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Correct answer to question 153 (Mathematics Knowledge): 3
Method
Slope is the change in y over the change in x. Here y rises by 14 - 2 = 12 while x increases by 5 - 1 = 4, so the slope is 12 / 4 = 3.
Updated: November 2026
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