Question

Linda's income, in thousands of dollars, is given by the function f(x) = 40x + 10, where x is the number of years. Her expenses, in thousands of dollars, each year is given by the function g(x) = 25x + 5.

Which function best describes the amount she is able to put into savings, h, each year, in thousands of dollars?

h(x) = 65x + 15
h(x) = (40x + 10)(25x + 5)
h(x) = -15x - 5
h(x) = 15x + 5

Answer 1

The function best describes the amount she is able to put into savings, h, each year, in thousands of dollars is h(x) = 15x + 5.

Answer 2

the correct answer for plato is h(x) = 15x + 5.