Respuesta :

Equation: y = 2x + 40

2 is the increase per year and 40 is the value that is started off with (y-intercept).

Plug 10 for the x-value (years).

y = 2(10) + 40
y = 20 + 40
y = 60

Therefore, $60.

Interest rate is 5% (2/40)