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OpenStudy (anonymous):
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OpenStudy (anonymous):
These two lines are perpendicular. Describe their slopes and explain how you know the lines are perpendicular. @iGreen
OpenStudy (anonymous):
Take two points from each line and find the gradient using the formula 'y2-y1/x2/x1' For lines to be perpend.... multiplying their gradients should give u -1 :)
OpenStudy (anonymous):
Use the graph to determine the solution of the system of equations. Support your answer. @KissMyAxe
OpenStudy (anonymous):
Sorry no idea :(
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