Which statement is true about the purpose of trend lines in scatterplots?
2 answers:
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Answer:
-
Step-by-step explanation:
=
( cross- multiply )
6x = 5y ( divide both sides by 6 )
x = y
Then
← substitute x =
y into the expression
=
=
=
= × -
= -
Only 3(a−b) and 3a−3b are equivalent
Further explanation:
We have to evaluate each expression to evaluate if the expressions are equivalent or not.
So,
<u>For 3(a−b)</u>
As we can see that 3(a-b) results in 3a-3b so these are equivalent
<u>For 2a(2+b)</u>
As we can see that 2a(2+b) doesn't result in 4ab so these are not equivalent
Hence,
Only 3(a−b) and 3a−3b are equivalent
Keywords: Equivalent expression, Polynomials
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