Michelle has a starting balance on a gift card for $300. she buys several dresses at $40. after her purchases she has $140 on th
2 answers:
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Answer:
Option B
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or
In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin
In this problem the only linear function that passes through the origin is
where
The constant of proportionality is k=3/4