The data below represent the overall miles per gallon (MPG) of 2008 sedans priced under $20,000.

B. (2,5)  
For this problem, simply plug in the X values and calculate the Y value and verify that the Y value matches the value given. 
 A. (4,1); X = 4: 3x - 1 = 3*4 - 1 = 12 - 1 = 11. 11 does not match 1.
 B. (2,5); X = 2: 3x - 1 = 3*2 - 1 = 6 - 1 = 5. 5 matches 5.
 C. (4,3); X = 4: 3x - 1 = 3*4 - 1 = 12 - 1 = 11 does not match 3
 D. (0,-3); X = 0: 3x - 1 = 3*0 - 1 = 0 - 1 = -1 does not match -3
 
 And of the above, only option "B. (2,5)" matches.