Find the gradient of the line through (3, 4) and (4, 1).
Answer and explanation
Correct answer: A. -3
- Step 1: Gradient = (y2 - y1)/(x2 - x1) = (1 - 4)/(4 - 3). Step 2. = -3/1 = -3. Answer: -3. Why not the others: 3: The sign is reversed: the change in y is divided by the change in x in the same order. -1/3: That is the change in x divided by the change in y, the wrong way round. -2: That is one more than the change in y divided by the change in x.
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