AlgebraMediumRatio of the x-intercepts of two parallel lines
Algebra practice question
In the xy-plane, the lines 3x + 4y = 24 and 3x + 4y = 48 are parallel. What is the ratio of the x-intercept of the second line to the x-intercept of the first?
Answer: 2
x-intercepts: 24/3 = 8 and 48/3 = 16. The ratio is 16/8 = 2.
Common wrong answers
- If you answered 8
- 8 is the first line's x-intercept.
- If you answered 24
- 24 is the difference in the constants.
- If you answered 1/2
- 1/2 is the ratio the other way round.
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