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Sagot :
When two lines are parallel they share the same slope. The slope-intercept form is one of the type:
[tex]y\text{ = mx + b}[/tex]Therefore we are looking for a line that is paralell to "y = 4x + 8", so we need a line with a slope "m" equals 4.
[tex]y\text{ = 4}\cdot x\text{ + b}[/tex]To find the variable "b" we will apply the known point, which the problem provided in (1,8).
[tex]\begin{gathered} 8\text{ = 4}\cdot1\text{ + b} \\ 8\text{ = 4 + b} \\ 8\text{ - 4 = b} \\ b\text{ = 4} \end{gathered}[/tex]
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