# Which relations are functions and which are not functions?Column A Column B1.{(2, 2), (4, 4), (6, 6), (8, 8)}2.{(0, 3), (3, 5), (5, 6), (8, 4)}3.{(1, 2), (3, 3), (4, 8), (6, 3)}4.{(3, 4), (5, 2), (5, 6), (7, 3)}A.functionB.not a function

B) A
C)A
D) B
Reason I know this is because if we look at the x number in all of these, if 2 are the same (like 2,6 and 2,4) then its a non function.
But if none of the x =the same value its a function.
Same goes for B

and now D, is a non function because out X's:
3
5
5
7
5 was repeated so it's a nonfunction.
Got it?

(I also just took this test XD)

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Hello!

A 1350 kg car travels at 12 m/s. What is it's kinetic energy ?

We have the following data:

m (mass) = 1350 kg

v (velocity) = 12 m/s

KE (kinetic Energy) = ? (in Joule)

Formula to calculate kinetic energy:

Solving:

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