3. A group of workers is harvesting berries at a constant rate. An equation that represents the total number of baskets of berries the workers picked over a period of time, in hours, is y = 7x + 15.
(a) What are the slope and the y-intercept for the equation?
(b) Which term represents the total number of baskets of berries the workers picked over a period of
time?
(c) What are the rate of change and the initial amount? Explain the meaning of the rate of change and
the initial amount for the situation.
(d) Use graph below to draw a graph representing the situation. Label the axes appropriately.