3. Gambarlah grafik fungsi pecah \( f(x)=\frac{2 x+3}{x-2}, x \neq 2 \)

1. Write the following sets as an interval or union of interval. In each case \( x \in \Re \). a) \( A=\{x: x \neq 0 \wedge x \neq 8\} \) b) \( B=\left\{x: x^{2}\left(x^{2}-1\right) \neq 0\right\} \) c) \( B=\left\{x: x^{2}=2 \Leftrightarrow x \geq-1\right\} \) d) \( C=\left\{x:\left(x^{3}-2 x\right) \neq 0\right\} \) e) \( C=\{x:(x-2)(x+3)=0 \Rightarrow x \geq 0\} \)

V. The number of bacteria in a crop is represented by: \( f(t)=3(4)^{t} \), where \( t \) is measured in hours and \( f(t) \) in thousands. 1. What is the initial number of bacteria? 2. How many are they at 20 minutes? 3. How many are they in half an hour? 4. How many are they after \( 2 \frac{1}{2} \) hours?

Use transformations to graph the function. Determine the domain, range, horizontal asymptote, and \( y \)-intercept of the function. \( f(x)=4^{x}+3 \) Use the graphing tool to graph the function. What is the domain of \( f(x)=4^{x}+3 \) ? (For any answer boxes shown with the grapher, type an exact answer.) (Type your answer in interval notation.)

Ejercicio 1 \( f(x)=\sqrt{\left(3 x^{2}-x\right)} \)

Convert \( 195^{\circ} \) to radians.