Find the gradient of the line through (2, 1) and (3, 3).
Answer and explanation
Correct answer: A. 2
- Step 1: Gradient = (y2 - y1)/(x2 - x1) = (3 - 1)/(3 - 2). Step 2. = 2/1 = 2. Answer: 2. Why not the others: -2: The sign is reversed: the change in y is divided by the change in x in the same order. 1/2: That is the change in x divided by the change in y, the wrong way round. 3: That is one more than the change in y divided by the change in x.
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