SOLUTION: Draw the graph of each line using its y-intercept and its slope. A bookstore manager plans to spend $60 on pens at 30 cents each and pencils at 10 cents each. the equation 0.10x

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Question 135021: Draw the graph of each line using its y-intercept and its slope.
A bookstore manager plans to spend $60 on pens at 30 cents each and pencils at 10 cents each. the equation 0.10x + 0.30y =60 can be used to model this situation.
a) what do x and y represent?
b) Graph the equation
c) Write the equation in slope-intercept form.
d) what is the slope of the line?
e) what does the slope tell you?
Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website!
A bookstore manager plans to spend $60 on pens at 30 cents each and pencils at 10 cents each. the equation 0.10x + 0.30y =60 can be used to model this situation.
a) what do x and y represent?
x is number of pencils
y is number of pens
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b) Graph the equation
graph(400,300,-10,10,-10,10,(-1/3)x+200
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c) Write the equation in slope-intercept form.
y = (-1/3)+ 200
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d) what is the slope of the line?
m = -1/3
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e) what does the slope tell you?
As x increases one, y decreases 1/3
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Cheers,
Stan H.