# Benjamin invests \$400$400dollar sign, 400 in a savings account that earns 5\%5%5, percent interest each year.

Benjamin invests \$400$400dollar sign, 400 in a savings account that earns 5\%5%5, percent interest each year. He models the relationship between the time TTT since he opened the account (in years) and the account’s balance BBB (in dollars) as B=400\cdot1.05^TB=400⋅1.05
T
B, equals, 400, dot, 1, point, 05, start superscript, T, end superscript.
He wanted to create a graph to show the account’s balance over the first 101010 years. Here is his work:
What mistakes did Benjamin make when drawing the graph?