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GRADE 11 MATH
COORDINATE GEOMETRY
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Distance of a point from a line
Distance between 2 parallel lines
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Distance of a point From ax + by +c = 0 is
Distance between 2 parallel lines
Question 1
Find the distance of the point P (3 , - 5) from the line 3x – 4y – 26 =0
Distance
Question 2
Find the values of k given that the distance of (4,1 ) from 3x – 4y +k =0 is 4 units
Question 3
Find the equation of straight lines when are parallel to the line x + 7y +2 = 0 and at a unit distance
From (2 , - 1)
Since the line is parallel to x+ 7y + 2 =0 it’s equation is
Equation of the lines are
Question 4
Find the points on the x axis whose perpendicular distance from the line
Let me required point =(a,0)
Points are
Question 5
Find the equation of the line which lies midway between the lines 2x + 3y + 7= 0 and
2x + 3y + 5 = 0
The line is mid parallel to the 2 lines. It’s equation is
This point is equidistant from both lines
Equation of the line
Question 6
Find the distance between the lines 3x + 4y = 9 and 6x + 8 y = 15
The 2 lines are parallel
Put y = 0 in 3x + 4y =9
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Distance of a point from a line