in a flash of sheer Brilliance Mason invents a time machine the machine uses small nuclear reactor to generate the electricity it needs to travel back in time .
there is a proportional relationship between how many years mason wants to travel back in time , X , and how much electricity (in megawatts) his time machine needs , Y .
X | Y
9 | 36
20 | 80
23 | 92
24 | 96​