Question 830002
Which of the following is the equation of a line perpendicular to the line
y=-1/3x+1 , passing through the point (2,7)?

-3x-y=1

3x-y=-1

3x-y=1

-3x+y=-1
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Check the slope. If it's perpendicular, the slope is +3.
Then, sub 2 for x and 7 for y, see if it's equal.