SOLUTION: The equation y=2/3x represents the cost y (in dollars) for x pounds of bananas. Graph equation, use graph to estimate the cost of 8 pounds of bananas. Write in a sentence. I

Algebra ->  Linear-equations -> SOLUTION: The equation y=2/3x represents the cost y (in dollars) for x pounds of bananas. Graph equation, use graph to estimate the cost of 8 pounds of bananas. Write in a sentence. I      Log On


   



Question 1059369: The equation y=2/3x represents the cost y (in dollars) for x pounds of bananas.
Graph equation, use graph to estimate the cost of 8 pounds of bananas. Write in a sentence.
I don't understand??? Do I put in different values for x...like 2,4,6,8???
Use equation to find exact cost of 8 pounds of bananas.
y=2/3*8= 5.33

Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
I assume your problem's equation is
:
y = (2/3) * x, also can be written as y = 2x/3
:
This is a line in the Cartesian plane that associates a real value x to a y value, each pair is a point (x, y) on the line.
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I would choose x values 3, 6, 9, 12, 15, .... since the denominator is a 3
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Here is the graph of y = 2x/3
:
+graph%28+300%2C+200%2C+-9%2C+9%2C+-10%2C+10%2C+%282+%2A+x%29%2F3+%29+
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From the graph it looks like the y value is (1/3) the distance between 5 and 6
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y = (2*8) / 3 = 5.333333....
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The cost of 8 pounds of bananas is approximately $5 and 34 cents
since the merchant is not going to be short a penny :-)
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