Subjects algebra

Function Analysis 206D29

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Question: If $f(x) = \frac{3}{x-2}$ and $g(x) = \sqrt{x+1}$
1. **State the problem:** We are given two functions $f(x) = \frac{3}{x-2}$ and $g(x) = \sqrt{x+1}$. We want to understand these functions and possibly analyze or graph them. 2. **Understand each function:** - $f(x) = \frac{3}{x-2}$ is a rational function with a vertical asymptote at $x=2$ because the denominator cannot be zero. - $g(x) = \sqrt{x+1}$ is a square root function defined only for $x \geq -1$ since the expression inside the square root must be non-negative. 3. **Domain:** - For $f(x)$, domain is all real numbers except $x=2$. - For $g(x)$, domain is $x \geq -1$. 4. **Key features:** - $f(x)$ has a vertical asymptote at $x=2$ and a horizontal asymptote at $y=0$. - $g(x)$ starts at $(-1,0)$ and increases slowly. 5. **Graphing notes:** - $f(x)$ will approach infinity near $x=2$ from the left and negative infinity from the right. - $g(x)$ is only defined for $x \geq -1$ and is increasing. Final answer: The functions are $f(x) = \frac{3}{x-2}$ with domain $x \neq 2$ and $g(x) = \sqrt{x+1}$ with domain $x \geq -1$. Their graphs reflect these properties.