Substitute 100 for c in one of the equations to find the value of a. What is the value of a?
Enter your answer as the correct value, like this: 42

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