Find the equation of a line perpendicular to the line 4y = 7x + 3 which passes through (-3, 1)
a
7y + 4x + 5 = 0
b
7y - 4x - 5 = 0
c
3y - 5x + 2 = 0
d
3y + 5x - 2 = 0
Explanation
Correct Option
aVideo Explanation
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Michealubegirl
5 years ago
4y=7x+3
m=7/4
using formula for perpendicular line=m1m2=-1
7/4*m2=-1
m2=-4/7
(-3,1)
-4/7=y-1/x+3
7(y-1)=-4(x+3)
7y-7=-4x-12
7y=-4x-12+7
7y=-4x-5
7y+4x+5=0 (A) correct ans

