NCERT Class XI Mathematics - Straight Lines - Solutions

Question : 12

Total: 74

A line passes through (x1,y1) and (h, k). If slope of the line is m, show that k – y1 = m (h – x1).

Solution:

A line passes through (x1,y1) and (h, k). Also, the slope of the line is m.
So, m =

k−y1

h−x1

⇒ (k – y1) = m(h – x1).

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