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Aptitude · Q21

Coordinate Geometry

Competitive Exams · Aptitude · question 21

Q21

The equation of a straight line on a point (3, -5) and slope 2 is:

A.
2x - y - 11 = 0
Answer
B.
3x - 5y - 2 = 0
C.
5x - 2y + 3 = 0
D.
3x - 2y - 5 = 0

Answer: Option A

Solution

Answer: Option A
Solution:
Point (a, b) = (3, -5)
Slope = 2
The general equation of a straight line
(y - b) = m(x - a)
(y + 5) = 2(x - 3)
y + 5 = 2x - 6
2x - y - 11 = 0