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3 years ago

I will give BRAINLIEST to whoever is correct.

Mathematics

2 answers:

NikAS [45]3 years ago

5 0

The correct answer is the last number line because with an inequality, the "equal to" sign below the "<" or ">" means the circle should be filled in. The line is traveling in a negative direction because the inequality says that n is less than -1.

Agata [3.3K]3 years ago

3 0

The last one as it is equal to negative one, so it is included on the number line. Then it has to be less and equal to negative one which means that it can be any number lower than -1, which represents the arrow showing the infinite possibilities. Hope this helped!

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3. Which is the inverse of the function f(x) = 4x^2?

natali 33 [55]

Answer:

$f^{-1}(x)=\frac{\sqrt{x}}{4}$

Step-by-step explanation:

The inverse of the function is the "opposite" of a function, so to speak. One can find it by treating it like a literal equation with 2 variables, one now has to solve for the other variable presnet. In other words, treat the therm (f(x)) like another variable in the equation. Now one has to solve for (x) in terms of (f(x)).

$f(x)=4x^{2}\\$

Manipulate the literal equation with inverse operations;

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Now switch the variables;

$f^{-1}(x)=\frac{\sqrt{x}}{4}$

The $f^{-1}(x)$ signifies that the written function is the inverse of the original function.

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