# The line through

Given: A (h,3) and B (4,1) be the points intersect At right angle at the line 7x – 9y – 19 = 0

To find:

The value of h.

Explanation:

The line 7x 9y 19 = 0 can be written as So, the slope of this line is It is given that the line joining the points A (h,3) and B (4,1) is perpendicular to the line 7x 9y 19 = 0. 9h – 36 = -14

9h = 22

h Hence, the value of h is Rate this question :

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