1. What effect does the 5 have on the graph ofy=cosx in the functiony=cosx+5?

a. Shift the graph 5 units left

b. Shifts the graph 5 units up

c. Shift up the graph 5 units down

d. shifts the graph 5 units to the right

2. What effect does the negative sign have on the graph ofy=2cosx

a. Shift the graph 2 units left

b. reflects the graph ofy=cosx over the x-axis

c. Shift up the graph 2 units down

d. reflects the graph ofy=cosx over the y-axis