SOLUTION: Assume it costs 25 cents to mail a letter weighing once ounce or less, and then 20 cents for each additional ounce or fraction of an ounce. Let L(x) be the cost of mailing a letter

Algebra ->  Graphs -> SOLUTION: Assume it costs 25 cents to mail a letter weighing once ounce or less, and then 20 cents for each additional ounce or fraction of an ounce. Let L(x) be the cost of mailing a letter      Log On


   

Question 148456: Assume it costs 25 cents to mail a letter weighing once ounce or less, and then 20 cents for each additional ounce or fraction of an ounce. Let L(x) be the cost of mailing a letter weighing x ounces. Solve and graph y=L(x).
I started by doing y=L(x)+20 then I plugged in points for x. Am I headed in the right direction with this?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Assume it costs 25 cents to mail a letter weighing once ounce or less, and then 20 cents for each additional ounce or fraction of an ounce.
Let L(x) be the cost of mailing a letter weighing x ounces. Solve and graph
y=L(x).
I started by doing y=L(x)+20 then I plugged in points for x. Am I headed in the right direction with this?
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The 20 gets added every time you add an ounce, so the 20 is the slope.
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L(x) = 20(x-1)+25
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graph%28400%2C300%2C-10%2C10%2C-10%2C100%2C20%28x-1%29%2B25%29
Cheers,
Stan H.