joballestas joballestas

27-03-2016
Mathematics

Answered

determines whether the line through the points

S (-2.3) and R (3,5) is perpendicular to the line through the points A (2, -1) and B (-4, 14)

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Verified Answer :

tescoman1 tescoman1

27-03-2016

find their gradients using the change in y coords divided by the change in x coords. once you have the gradients (or slopes), multiply them by eachother - if the product is (-1) then theyre perpdendicular, if not, they are either parallel or intersect at a point

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