3 years ago

1 4

1 answer:

5 0

$(1, 4), \ \ (2 , 8 ) \\ \\ slope \\ \\ m = \frac{8-4}{2-1}=\frac{4}{1}=4 \\ \\y=ax+b$

$4=4*1+b\\ \\b=4-4\\ \\b=0 \\ \\y=4x$

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