Question

HELP ASAP!!! WILL MARK BRAINLIEST A proportional relationship between the number of pounds of potatoes (x) and the price in dollars (y) is graphed, and the ordered pair (4, 3) is on the graphed line.
Part A: What is the price of 1 pound of potatoes? Show your work. (8 points)
Part B: What does the ordered pair (8, 6) on the graph represent? EXPLAIN IN WORDS.

Answer 1

I assume the relationship is linear in the form y = mx +c

If (5,4) is on the line we can calculate the equation

gradient m = change in y over change in x, = 4/5

y = 4/5 * x +c

4 = 4/5 * 5 +c

c = 0

y = 4/5 x

Part a if x = 1 then y = 4/5

part b is 2 times (5,4) so 10 pounds of potatoes cost 8 dollers 

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Answer 2

Answer:

with proportional relationships, you can simply divide the y coordinate by the x coordinate to find the unit rate: In this case, if (5,4) lies on the line then you have 5 lbs of potatoes for 4 dollars or .80 cents for 1lb of potatoes. The point (10,8) represents 10 lbs of potatoes for 8 dollars. Here you can see that dividing 8 by 10 we once again get the unit rate of .80 cents per 1 lb of potatoes.

x = lbs of potatoes and y = price(4,3)....this means 4 lbs of potatoes cost $ 33/4 = 0.75 cents per lb <== 1 lb of potatoes cost 0.75(8,6)...this means that 8 lbs of potatoes cost $ 6

Hope this helps

-Agarvated Team