(adsbygoogle = window.adsbygoogle || []).push({}); Cant remember how to use formula !!!

i cant for the life of me remember which way to do this formula someone please show me the light,,,,,

to find the slope(m) of the line you have y2 - y1 / x2 - x1 am i right then getting the result (m) you use this formula y=mx+c

taking y1 for y and x1 for x ,

now heres my question

we have c = (m)(x) is it - y or is it /y

thanks for your replys in advance..

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# Cant remember how to use formula

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