HW Review for Test 3/28

What is the y-intercept? (sub in 0 for x)

Write as an ordered pair (x,y)

What is the starting amount of caffeine in each person's bloodstream?

In which person is the caffeine decreasing the fastest?

How much remains after 4 days?

Round to the nearst whole percent.

Movie tickets now cost $15 a ticket, but are increasing 10% per year. How much will they cost in 5 years (if there are still movie theaters that is)????

y=a(1+r)^t

Round to the nearest hundredth.

Use the fact that minimum wage was $7.25 in 2009, and $6.55 in 2008 to find the growth factor for wages.

Write the growth factor rounded to 3 decimal places. Hint: divide

Use your growth factor from last problem to solve.

Start with $7.25 in 2009. If minimum wage would have continued to increase at the same rate, what should minimum wage be currently?

y=a(1+r)^t

Sort each as either growth or decay

Categorize each type of function.

Sort each as either growth or decay.