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The graph show the cost In c dollars of w pounds of blueberries,a proportional relationship.

User Asmus
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Problem

Solution

From the figure given we can see that we have two points x1=0, y1=0, x2= 6, y2= 16.50

We can calculate the slope on this way:

m= (y2-y1)/(x2-x1)

Replacing we got:

m= (16.50-0)/(6-0)= 2.75

And our equation would be given by:

y= 2.75x

Now we can analyze one by one the statements given:

A is correct since for x=1 we have that y=2.75

B is incorrect since if we replace x= 2.75 in the equation we don't got y=1

C is incorrect since y(5)= 2.75*5= 13.75

D is correct since y(12) = 2.75*12= 33

E is incorrect since the point (3,9) is not on the graph of the proportional relationship.

The graph show the cost In c dollars of w pounds of blueberries,a proportional relationship-example-1
The graph show the cost In c dollars of w pounds of blueberries,a proportional relationship-example-2
User Soc
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