2: For every gallon of gas purchased, $3.75 was paid.
Step-by-step explanation:
Both options 1 and 3 would require having a dot plotted at those points to be sure, and they're close but they're still approximations. And option 4 is irrelevant. However the point at (4,15) can be used to check option two: 15/4 = 3.75 , ie the price per gallon of gas.
I would think of it as this but i could be wrong. A right angle is 90 degrees and if you put 1/6 into a decimal it would be 6. 90-6<span>=84 so 84 degrees is missing of the right angle.</span>
