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​Algebra 1   State Test Practice

Write a function f(x)

1/19/2019

 
Emerson has $120.  Each week he saves an additional $15.  Write a function f(x) that models the total amount
of money Emerson has after x weeks.

  • has $120
  • adds $15 each week
  • f(x) is total amount after x weeks

Since Emerson is adding 15x to the $120 that he currently has, then:
f(x) = 120 + 15x   {total, f(x), equals adding 15 per week to the original 120}

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