Question 1172067: Ike sells grapes at a farmers market. Each pound of grapes sells for the same amount. The table below shows the total prices for different numbers of pounds of grapes sold.
Number of Pounds Sold
2
4
10
Total
Price ($)
$4.50
$9.00
$22.50
A. In equation form describe the relationship between the number of pounds of grapes sold(x) and the total price (y), in dollars.
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! Set it up as an ordered pair
(2, 4.50)
(4, 9)
(10, 22.50)
The slope is 4.50/2 or 2.25
slope-intercept form is y-y1=m(x-x1), m slope, (x1, y1) a point
so y-9=2.25(x-4)
y=2.25x
no constant.
each pound of grape is $2.25.
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Can also be done by inspection. 10 pounds-22.50 is $2.25 per pound.
2 pounds for $4.50 is the same.
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