Stats whether they are parellel perpendicular or neither by working out the gradients.... i) y= -4 x= 2 i have a general idea that the formula y=mx-c is involed, or am i wrong ?Also, how do i solve this question ?
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It is involved but you have only one line... for parallel lines m is the same for perpendicular lines $\displaystyle m_1m_2 = -1$
so how can i solve it...because thats all its given in the question
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