Which graph below represents a function?

Draw a vertical line and notice if the vertical line intercepts more than 2 points  in the graph.

A, if we draw a vertical line, it'll just intercept only one point of the graph. So A is function.

A is the only function here. If we draw a vertical line for other graphs, it'll intercept 2 points.

idk i would have to be there to under stand it

step-by-step explanation:

idk i would have to be there to under stand it

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47