find a if the ppint (8,1) lies.in locus x=4ay
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Answer:
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10.2 Solved Examples
Short Answer Type
Example 1 Find the equation of a line which passes through the point (2, 3) and
makes an angle of 30° with the positive direction of x-axis.
Solution Here the slope of the line is m = tanθ = tan 30° =
1
3
and the given point is
(2, 3). Therefore, using point slope formula of the equation of a line, we have
y – 3 =
1
3
(x – 2) or x – 3y + (3 3 – 2) = 0.
Example 2 Find the equation of the line where length of the perpendicular segment
from the origin to the line is 4 and the inclination of the perpendicular segment with the
positive direction of x-axis is 30°.
Solution The normal form of the equation of the line is x cosω + y sinω = p. Here
p = 4 and ω = 30°. Therefore, the equatio
Answer:
21
Step-by-step explanation: