The expression P(1+r)n models the amount of money in an account where P is the initial amount, r is the interest rate, and n is the number of years. The table shows the amount of money that Catie and Michael have after a number of years.

the ordered pairs for the given function are of the form

  or  

sin y = 7/q

7 is the opposite side length, q is the hypotenuse

tan y = 7/r

7 is the opposite side length, r is the adjacent side length

using sohcahtoa ^^^^

cos y = adjacent/hypotenuse

cos y = r/q

i'll be glad to : )