Which of these graphs represents a function?
A. W
B. X
C. Y
D. Z

For what values of b will f(x)= logbx be a decreasing function? (16 )

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?