Helen made a graph that represents the amount of money she earns, y, for the numbers of hours she works , x. the graph is a straight line that passes through the origin and the point (1, 12.5)
which statement is true
a) the slope of the graph is 1
b) helen earns 12.50 per hour
c) helen works 12.5 hours per day
d) the y-intercept of graph is 12.5