match each item in column a to an answer in column b.
which relations are functions and which are not functions?

Again, if you look at the functions you have to look at the y-coordinate, and if one pair has the same y as another, it's not a function. 1 ,2 ,3 is a function, 4 is not.

Ifound this on google “that means that the graph of a function with direct variation has these features: it is a straight line: because the slope is the ratio y/x = k. it passes through the origin (0,0): because y = kx = k (0) = 0.” i hope this you for what your looking for

50.2450.24 in squared