AlgebraVery hardSlope from the intercepts of a line
Algebra practice question
In the xy-plane, a line crosses the x-axis at (4, 0) and the y-axis at (0, 6). What is the slope of the line?
Answer: -3/2 or -1.5
From (4, 0) to (0, 6) the rise is 6 and the run is −4: slope = −3/2.
Common wrong answers
- If you answered 6
- 6 is the y-intercept.
- If you answered 3/2
- 3/2 loses the sign.
- If you answered -2/3
- −2/3 inverts the ratio.
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