Question

If the line passing through (4, 3)
and (2, k) is perpendicular to
y=2x+3, then k =​

Answer 1

Answer:  Let two lines are perpendicular then product of slope be -1

m1 m2=−1

3−k/2 ×2=−1

3−k=−1

3+1=k.

k=4

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