st-line

Question: The equation of the line perpendicular to line $ax+by+c=0$ and passing through $(a,\ b)$ is equal to

1) $bx-ay=0$

2) $bx+ay-2ab=0$

3) $bx+ay=0$

4) None of these

Solution:

Explanation: No Explanation

Slope of line Equation of line in different forms

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