The table shows the total cost of cupcakes (y) for (x) number of cupcakes.
Number of Cupcakes
x Total Cost
y
3 6
4 8
5 10
6 12
Part a. Write a function rule to relate (y) and (x).
Part b. Show how you can use the function rule to find the total cost for 11 cupcakes. Show all of your work.
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OpenStudy (anonymous):
Okay, so how do the numbers in the right column relate to the numbers in the left column?
OpenStudy (anonymous):
idk
OpenStudy (anonymous):
What do you get it you take each number from the right column divided by the number that goes with it in the left column?
OpenStudy (anonymous):
umm ok
OpenStudy (anonymous):
then wat?
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OpenStudy (anonymous):
If your answer is the same for all of them, and your left column is x and right column y, how many y do you have for every x?
OpenStudy (anonymous):
its all hafe
OpenStudy (anonymous):
So can you write an equation or formula that says that?
OpenStudy (anonymous):
y=2x
OpenStudy (anonymous):
um idk
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OpenStudy (anonymous):
6= twice of 3
8= twice of 4
10=twice of 5
so y=twice of x