Answer
$(2,6),(3,10),(4,14)$
Work Step by Step
Answer may vary.
Step 1. Given slope $m=4$ and point $P(1,2)$, we can write the point-slope form of the equation as $y-2=4(x-1)$ or $y=4x-2$.
Step 2. Letting $x=2,3,4$ and using the equation, we can locate three more points on the line as $(2,6),(3,10),(4,14)$
Alternatively, one can use the method given in the textbook example to get the same results.