Find the equation of the line passing through the point (2,3) and perpendicular to the straight line 4x−3y=10.
A
3x+4y=18
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B
3x−4y=18
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C
3x+4y=−18
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D
4x−3y=−18
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Solution
The correct option is A3x+4y=18 Equation of line perpendicular to 4x−3y=10 is 3x+4y=c where c is constant. As this line passing through (2,3) Substituting this we get c=3.2+4.3=18 Hence, equation is 3x+4y=18.