What is the slope of the line that passes through the points (1, 3) and (4, 12)?
Answer and explanation
Correct answer: D. 3
- Step 1: Slope = change in y / change in x. Step 2. (12 - 3) / (4 - 1) = 9 / 3 = 3. Answer: 3. Why not the others: 1/3 inverts the ratio and 9 is only the change in y.
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