swandrs
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The sale price of ground beef at a local grocery store is $1.49 for the first pound and $1.09 for each additional pound. Which function rule shows how the cost y of ground beef varies with the number of pounds x?

Respuesta :

kristoffer
Assuming that you purchase at least 1 pound of ground beef:

y = ax + b
y = 1.09x + 1.49

y = 1.09x + 1.49 function represents the cost of y of ground beef varies with the number of pounds x.

What is function?

" Function is a mathematical expression which represents the relation between dependent variable and independent variable."

y = ax +b

According to the question,

x represents the additional pound

y represents the cost of ground beef

we have,

cost of ground beef for first pound 'a' = 1.49

cost of ground beef for additional  pound 'b' = 1.09

Therefore,

y = 1.49x + 1.09

Hence, y = 1.09x + 1.49 function represents the cost of y of ground beef varies with the number of pounds x.

Learn more about function here

https://brainly.com/question/12431044

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