The following graph shows a proportional relationship. What is the constant of proportionality between y and x in the graph?
Constant of proportionality =

Which recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous year? f(n+1)=f(n)+5

Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.