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Find the value of r so the line that passes through each pair of points has the given slope: (r,5) (-2,4) m=-2/9

 Oct 23, 2020
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Find the slope between the lines    (y1-y2) / (x1-x2)   and this = - 2/9

 

                                                        (5-4) / (r - - 2) = -2/9

                                                           1/(r+2 ) = -2/9           you should be able to solve for 'r' from this....  cheeky

 Oct 23, 2020

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