Straight Line Question 298
Question: A line meets x?axis and y-axis at the points A and B respectively. If the middle point of AB be $ (x_1,\ y_1), $ then the equation of the line is
Options:
A) $ y_1x+x_1y=2x_1y_1 $
B) $ x_1x+y_1y=2x_1y_1 $
C) $ y_1x+x_1y=x_1y_1 $
D) $ x_1x+y_1y=x_1y_1 $
Correct Answer: A
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Answer:
Solution:
Þ $ \frac{x}{2x_1}+\frac{y}{2y_1}=1\Rightarrow xy_1+yx_1=2x_1y_1 $ .
BETA
