Respuesta :

HomertheGenius
x - number of months ( 1, 2 or 3 );
A function is:
f ( x ) = 50 x + 200
A reasonable domain is:
x ∈ { 1, 2, 3 }
The range is:
y ∈{ $250, $300, $350 }
Assuming that you wanted to find out the total cost for the whole year,

If we put yearly payment as y and additional fees as x, The equation would be :

y = 200 + 4x

y = 200 + 4(50)

y = $ 400

hope this helps

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