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Mathematics 9 Online
OpenStudy (anonymous):

The equation of a line is 7x - 9y + 10 =0. What is the slope of a line perpendicular to that line?

ganeshie8 (ganeshie8):

start by finding the slope of given line

ganeshie8 (ganeshie8):

whats the slope of given equation ?

OpenStudy (anonymous):

@ganeshie8 -7/9?

ganeshie8 (ganeshie8):

check again

ganeshie8 (ganeshie8):

when u send y term to other side, it becomes positive right ?

ganeshie8 (ganeshie8):

7x - 9y + 10 =0 7x + 10 = 9y

ganeshie8 (ganeshie8):

so slope of given line is ?

OpenStudy (anonymous):

oh so its 7/9 not negative

OpenStudy (anonymous):

@ganeshie8 so the slope of the perpendicular line is the negative reciprocal of that correct?

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