Respuesta :
Based on what I have learned that’s how I would do it. Hope that helped :)

y=50x+438 so 438 is the initial value and 50 is rate of change. this is linear
wk 1 $438
wk 2 $488
wk 3 $538
wk 4 $588
wk 5 $638
wk 1 $438
wk 2 $488
wk 3 $538
wk 4 $588
wk 5 $638