You just literally mark the graph, you see the 1st points (2,12) go on the X axis to 2, then go up to 12 and mark that as a point. and continue with this tactic with the rest.
Kate needs to swim 40 laps to come complete 66 laps
-6x + y= -7
Add 6x on both sides to isolate y
Y= 6x-7
The slope is 6 and the y-intercept is -7
Hope this helps!
Please mark me as brainliest if you can, I really appreciate it!