Question

carson has 450 in his bank account and deposits 70 per month out of his babysitting money. construct a linear function that model carsons bank balance for any given month. this should be a equation.

Answer 1

at 0 months, Carson has 450, so say his total balance is "y", thus at 0 months

y = 450 ................................. 0 months

y = 70 + 450 .......................... 1 month

y = 70+70 + 450 ..................... 2 months

y = 70+70+70 + 450 ............... 3 months

y = 70+70+70+70+ 450 ........... 4 months

y = 70(4) + 450 ....................... 4 months

y = 70(x) + 450 ....................... x months

y = 70x + 450