anonymous
  • anonymous
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, including the proportion you used to determine the price. (8 points) Part B: What does the ordered pair (8, 6) on the graph represent? Explain in words.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
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anonymous
  • anonymous
okay, so we know the equation y=mx+b
anonymous
  • anonymous
yea
anonymous
  • anonymous
but first

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anonymous
  • anonymous
we have to plug in (4,3) into that equation
anonymous
  • anonymous
ok
anonymous
  • anonymous
so that you can find b, right?
anonymous
  • anonymous
and then, from there you can draw a line and find out how much it would cost for 1
anonymous
  • anonymous
Ok can u stay to check my work?
anonymous
  • anonymous
totally
anonymous
  • anonymous
ill have some work too and ill snap a pic
anonymous
  • anonymous
wait can you help me draw the graph?
anonymous
  • anonymous
what do you mean? like the line?
anonymous
  • anonymous
Yea like how would it be presented?
anonymous
  • anonymous
okay so since we dont have a slope
anonymous
  • anonymous
we know that slope is the change in y over the change in x
anonymous
  • anonymous
Yea
anonymous
  • anonymous
so we have 3=4m+b
anonymous
  • anonymous
but we cant solve yet since we have two variables
anonymous
  • anonymous
ok ok
anonymous
  • anonymous
so we can do 3/4 as the slope using the given point right?
anonymous
  • anonymous
so now we have
anonymous
  • anonymous
\[3=\frac{ 3 }{ 4 }\times 4+b\]
anonymous
  • anonymous
ok ok
anonymous
  • anonymous
so what do we get when we solve that equation?
anonymous
  • anonymous
3?
anonymous
  • anonymous
or 0..
anonymous
  • anonymous
well, 3/4 times 4 equals three
anonymous
  • anonymous
correct
anonymous
  • anonymous
its zero
anonymous
  • anonymous
so the y intercept is zero
anonymous
  • anonymous
yay
anonymous
  • anonymous
so now
anonymous
  • anonymous
we have the equation y=3/4x+0
anonymous
  • anonymous
so we just plug in one for x
anonymous
  • anonymous
and we get y is equal to 3/4
anonymous
  • anonymous
ok
anonymous
  • anonymous
|dw:1439846550731:dw|
anonymous
  • anonymous
so now all i need to do is plug it i right?
anonymous
  • anonymous
just graph for you to visualize
anonymous
  • anonymous
yup
anonymous
  • anonymous
and then part b, means 8 pounds for 6 dollars
anonymous
  • anonymous
ok thank you :) :) :)
anonymous
  • anonymous
ok
anonymous
  • anonymous
your welcome! just tag if you need help again :)
anonymous
  • anonymous
ok :)

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