Which graph does not represent a function

graph three

work: to be cosnidered a function, it needs to past the vertical line test (if a vertical line is placed along any place in the graph, x doesn't repeat) and in the examples shown, 1, 2 and 4 all pass this test while 3 fails it.

i dont know men

step-by-step explanation:

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²