Edwin graphs the relationship of the gallons of milk he buys in terms of dollars.



Sam buys milk from a different shop. He writes an equation for the amount he spends on milk, p = 3.4g, where p is the cost and g is the gallons of milk bought. Who buys milk at a lower rate, and what is the price?

Respuesta :

Using a proportional relationship, it is found that Sam buys milk at a lower rate, of $3.4 per gallon.

What is a proportional relationship?

A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:

y = kx

In which k is the constant of proportionality.

Researching the problem on the internet, Edwin's graph goes through (2,7), hence the price is:

p = (7/2)g = 3.5g.

3.5 > 3.4, hence Sam buys milk at a lower rate, of $3.4 per gallon.

More can be learned about proportional relationships at https://brainly.com/question/10424180

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