Use the graph below to answer the following question:

what is the average rate of change from x = –4 to x = 1?
–3
–1
0
1

A) if $50000 is invested in a bank account that pays 9.3% of interest compounded on a six-monthly basis, how much money will be in the account after 3 and 12 years? b) if matusalen's father had put $2.0 in the bank when he was born and there, how long would matusalen have had to his death (969 years later) if the interest was 7% per year composed each month and weekly?

Find the solution of each of the following.

X+y=-4 x-y=2 use elimination with adding and subtraction