SAT官方每日一题数学（计算）9.18
- 2017年09月18日13:41 来源：小站整理
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Mathematics>Standard Multiple Choice
难易程度：简单
Line l is graphed in the xy-plane. If an equation for the line l is 6y-3x =5, which of the following statements is true?
A The X-intercept of line l is and the y-intercept is 
B The X-intercept of
line l is and the y-intercept is 
C line l has a slope of 2
D line l has a slope of 
Answer B
EXPLANATION
Choice B is correct. Because the x‑intercept of the line is where the line crosses the x-axis, the x-intercept can be found by substituting 0 for y and solving for x.
6(0)-3x=5
-3x=5
X=
Because the y-intercept of the line is where the line crosses the y-axis, the y‑intercept can be found by substituting 0 for x and solving for y.
6y-3(0)=5
6y=5
Y=
The y‑intercept is therefore located at the point (0,), which can also be
described by stating that the y-intercept is .
Therefore, the x-intercept of line l is and the y-intercept is .
