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Tatiana [17]
3 years ago
13

Need help with this question

Mathematics
1 answer:
kumpel [21]3 years ago
6 0

Answer:

B

Step-by-step explanation:

The problem wants you to PLUG IN x into the correct equation.

1) f(-1) means -1 equals x

f(3) means 3 equals x

For example g(9) means 9 = x and f(3/5) means 3/5 = x and so on.

2) Now that you know x equals two numbers -1 and 3 you have to plug them into a equation.

3) Which equation do you plug it in you may ask? You must plug in -1 into x^2 +3 BECAUSE the condition next to it says you can only plug in numbers to x^2+3 greater than or equal to -1 and less than 2. Therefore, you can plug in -1 to this equation.

-1^2 +3 = <u>4</u>

4) Now you have the number 3. Where do you think we should plug #3 into? Well you can plug it in to the first equation because the condition only allows numbers less then -1. the only option is the last one!!

1, for x >= 2 because 3 is certainly bigger than 2.

This means any number greater than or equal to 2 has to be 1.

SO OUR ANSWER IS 4 AND 1

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