Answer :

Using the slope-point form of the line equation

[tex]y-b=m(x-a)[/tex]

we can replace the values m=5 and (4,2) to obtain

[tex]\begin{gathered} y-2=5(x-4) \\ y-2=5x-20 \\ y=5x-18 \end{gathered}[/tex]

Then, the equation is y=5x-18

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