I need some help im so confused with this problem?!? There is six of them and this one is so confusing. Posting a picture, a little work to it, any help would be WONDERFUL

Question

anonymous · Answer

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anonymous · Answer

(i) First find the slope $m.$
(ii) Then use the usual formula for the line, $y=mx+b.$ You know $m$ from step (i), so you only need to find $b.$ You can do so by plugging one of your two given points into the equation: let's call one of the points for $(x_1,y_1).$ This results in the equation  $y_1=m\cdot x_1+b$ which you can solve to find $b.$

anonymous · Answer

@ljensen So i have to start with A for example can you help me with that