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Tamiku [17]
3 years ago
7

What is the value 4x-7 when x=4

Mathematics
1 answer:
Alexandra [31]3 years ago
8 0
We know that x = 4.
And the know that the equation is 4x - 7 = y.
Now put in the value of x: (4)(4) - 7 = y
Now solve: 16 - 7 = y; 9 = y
So your answer is y. Please mark my answer brainliest when you get the chance, thank you and have a nice day.
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Answer:

Ok, the domain is the set of values that we can input in a function.

In this case, we have:

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Notice that there is no restriction here, x can actually take any value, then the domain will be the set of all real numbers.

The correct domain is x, x ∈ R

Now, if we had (for example) something like:

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To find the domain, we can break the absolute value:

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