B) can be rewritten in function notation.
To find the function we must isolate y. To do this, we must subtract x from each side which will give us
Now, we can replace y with f(x), so the function is
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That the answer I’m pretty sure
Given :
AT&T charges $350 to get a plan with them, plus $60 per month.
T-Mobile charges a $275 initial fee, plus $80 per month.
To Find :
Write an equation or inequality that can be used to determine the number of months it would take for T-Mobile to cost the same or more than AT&T.
Solution :
Money-time relation of plan AT&T :
Money-time relation of plan T-Mobile :
( Here, x and y are number of months )
Let, after t months would take for T-Mobile to cost the same or more than AT&T.
So,
Hence, this is the required solution.