Find the distance of the point (–1, 1) from the line 12(x + 6) = 5(y – 2).

Asked by Pragya Singh | 1 year ago |  101

1 Answer

Solution :-

The equation of the line is 12(x + 6) = 5(y – 2).

12x + 72 = 5y – 10

12x – 5y + 82 = 0 … (1)

Now, compare equation (1) with general equation of line Ax + By + C = 0, where A = 12, B = –5, and C = 82

Perpendicular distance (d) of a line Ax + By + C = 0 from a point (x1, y1) is given by

The given point is \( (x_1,y_1) \)=(-1,1)

Thus, the distance of point (-1,1) from the given line is,

\( d= \dfrac{|12\times (-1)+(-5)\times 1+82|}{\sqrt{12^2+(-5)^2}} \)

\( d= \dfrac{|12-5+82|}{\sqrt{144+25}} \)

\( d= \dfrac{|65|}{\sqrt{169}} \)

\( d= \dfrac{65}{13} \) = 5 units

 The distance is 5units.

Answered by Abhisek | 1 year ago

Related Questions

Find the angle between the line joining the points (2, 0), (0, 3) and the line x + y = 1.

Class 11 Maths Straight Lines View Answer

Prove that the points (2, -1), (0, 2), (2, 3) and (4, 0) are the coordinates of the vertices of a parallelogram and find the angle between its diagonals.

Class 11 Maths Straight Lines View Answer

Find the acute angle between the lines 2x – y + 3 = 0 and x + y + 2 = 0.

Class 11 Maths Straight Lines View Answer

Find the angles between pairs of straight lines 3x – y + 5 = 0 and x – 3y + 1 = 0

Class 11 Maths Straight Lines View Answer

Find the angles between pairs of straight lines 3x + y + 12 = 0 and x + 2y – 1 = 0

Class 11 Maths Straight Lines View Answer