Genesis is using her savings account to pay standard bills over 6 months without replenishing the funds. use the table to write a linear function that models her spending.

month savings account balance in dollars
0 1,500
2 1,200
4 900
6 600
f(x) = 150x + 600
f(x) = −150x + 1,500
f of x equals one over 150 times x plus 600
f of x equals negative one over 150 times x plus 1,500