TS EAMCET · Maths · Pair of Lines
If represents a pair of lines, which of the following statements is true?
- A If the slope of one line is negative of the slope of another line, then
- B If the two lines are parallel then
- C If the two lines intersect at origin then and
- D The - coordinate of the point of intersection of the lines is positive when
Answer & Solution
Correct Answer
(A) If the slope of one line is negative of the slope of another line, then
Step-by-step Solution
Detailed explanation
Given pair of lines is ax2+2hxy+by2+2gx+2fy+c=0 ...i For option (1), If the slope of one line is negative of the other. Let the lines represented by i are lx+my+n1=0 & lx-my+n2=0 ∴ ax2+2hxy+by2+2gx+2fy+c=lx+my+n1lx-my+n2 Comparing…
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