[tex]\bf slope = {{ m}}= \cfrac{rise}{run} \implies
\cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{69.71-31.91}{47-19}
\\\\\\
m=\cfrac{rise}{run}\implies \cfrac{37.8}{26}\iff \cfrac{189}{130}
\\\\\\
\textit{now, what if HCF is 35? HCF is "x" or the "run"}
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\cfrac{rise}{run}\qquad \cfrac{rise}{35}=\cfrac{189}{130}\implies rise=\cfrac{35\cdot 189}{130}[/tex]