HOW THE HECK DO I DO THIS?!? ILL GIVE YOU 27 POINTS IF YOU DO THE GRAPH AND THE REST

In two or more complete sentences describe how to determine the appropriate model for the set of data, (1,1), (3,2), (6,3), (11,4).

X+y=-4 x-y=2 use elimination with adding and subtraction

Akitchen is 12 ft. by 14 ft. with 10 ft. high walls. how much would it cost to put vinyl flooring in this room? $8.80 per ft