Which of the following lines is perpendicular to \(4x + 5y = 9\) on the \(xy\) plane?

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B

C

D

E

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Which of the following lines is perpendicular to \(4x + 5y = 9\) on the \(xy\) plane?

A. \(y=\dfrac54x+2\)

B. \(y=-\dfrac54x+9\)

C. \(y=-4x+\dfrac95\)

D. \(y=\dfrac45x-\dfrac45\)

E. \(y=-\dfrac45x\)

Answer: A

Source: Manhattan GMAT
Source: — Problem Solving |