A proportional relationship between the number of pounds of cabbage (x) and the price in dollars (y) is graphed, and the ordered pair (5, 2) is on the graphed line.

Part A: What is the price of 1 pound of cabbage? Show your work, including the proportion you used to determine the price.
Part B: What does the ordered pair (10, 4) on the graph represent? Explain in words.

Question

A proportional relationship between the number of pounds of cabbage (x) and the price in dollars (y) is graphed, and the ordered pair (5, 2) is on the graphed line.

Part A: What is the price of 1 pound of cabbage? Show your work, including the proportion you used to determine the price. 
Part B: What does the ordered pair (10, 4) on the graph represent? Explain in words.

triciaal · Answer

(x, y)  (5,2) 
a proportional relationship  just means can be expressed as a ratio
what is the ratio of x to y  using the given values?

triciaal · Answer

rephrased
y = kx  using (5, 2) what is k?

triciaal · Answer

part A   what is the price Y when the quantity X = 1 ?

triciaal · Answer

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