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I need some help please

I need some help please-example-1
User Jxgn
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1 Answer

6 votes

Answer:

A. 2

Explanation:

Let's interpret the function.

First, let's look at the top section:


f(x)=x+2 if
x < 1

So, if the value of x is less than 1, to find f(x), we should add 2 to x.

Let's check if x is less than 1:


x=3\\x < 1\\3 < 1

3 is not less than one, so to find f(x), we cannot add 2 to x.

The second part of the function is:


f(x)=x-1 if
x\geq 1

So, if the value of x is greater than or equal to 1, to find f(x), we should subtract 1 from x.

Let's check if x is greater than or equal to 1:


x=3\\x\geq 1=\\3\geq 1

3 is greater than or equal to 1, so to find f(x), we should use x-1.


x-1=\\3-1=\\2

Thus, f(3) = 2; the answer is A.

User Horin
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