Which equation and statement below correctly explains why the table is a function? PLS HELP I MARK BRAINLEST D:

: y = 2x + 1y = 2 x + 1; for each input there is exactly one output

: y = 2x + 1y = 2 x + 1; one input value has more than one output

: y = \frac{5}{2} xy = 5 2 x; all input values are different
: y = \frac{5}{2} xy = 5 2 x; for each input there is exactly one output

"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?