Math

QuestionGraph f(x)=x+2x+2f(x)=\frac{|x+2|}{x+2} for the range [4,4][-4,4].

Studdy Solution

STEP 1

Assumptions1. f(x)f(x) is a function defined as f(x)=x+x+f(x)=\frac{|x+|}{x+}. . We are asked to sketch the graph of f(x)f(x) on the interval [4,4][-4,4].

STEP 2

The function f(x)f(x) is not defined for x=2x=-2 because the denominator becomes zero at x=2x=-2. So, we will consider two cases separately x<2x<-2 and x>2x>-2.

STEP 3

When x<2x<-2, x+2<0x+2<0. Therefore, x+2=(x+2)|x+2|=-(x+2). So, f(x)f(x) becomesf(x)=x+2x+2=(x+2)x+2=1f(x)=\frac{|x+2|}{x+2}=\frac{-(x+2)}{x+2}=-1

STEP 4

When x>2x>-2, x+2>0x+2>0. Therefore, x+2=x+2|x+2|=x+2. So, f(x)f(x) becomesf(x)=x+2x+2=x+2x+2=1f(x)=\frac{|x+2|}{x+2}=\frac{x+2}{x+2}=1

STEP 5

Now, we can sketch the graph of f(x)f(x) on the interval [4,4][-4,4]. For x<2x<-2, f(x)=1f(x)=-1 and for x>2x>-2, f(x)=1f(x)=1. At x=2x=-2, f(x)f(x) is not defined.

STEP 6

The graph of f(x)f(x) will be a horizontal line at y=1y=-1 for x<2x<-2 and a horizontal line at y=1y=1 for x>2x>-2. At x=2x=-2, there will be a hole indicating that f(x)f(x) is not defined.

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