1/4" = 1' convert 3 1/2 into an improper fraction with a denominator of 4: 3 1/2" = 7/2" = 14/4" 1/4" = 1', so 14/4" = 14' this side measures 14ft. next, convert 5 1/4" into an improper fraction: 5 1/4" = 21/4" 1/4" = 1', so 21/4" = 21' this side measures 21 ft.
You just need to try with all of the pair f.ex 0,-2 -> put 0 in the x-> y=8*0-2=-2 so ok it is q possible pair of the function.. You try every pair till you find set where all the pairs fit So set 1 1 and 6: 8*1-2=6 ok 2 and 14 : 8*2-2=14 ok Hope I could help
