Question 1

From Math Analysis HL Paper 1 (May 2025, TZ2)

  1. [Maximum mark: 5]

The function ff is defined by f(x)=3x22x+1f(x) = \frac{3x - 2}{2x + 1} for xR,x12x \in \mathbb{R}, x \neq -\frac{1}{2}.

The following diagram shows part of the graph of y=f(x)y = f(x).

Graph of the function y = f(x) showing its shape and asymptotes.
Graph of the function y = f(x) showing its shape and asymptotes.

(a) Write down the value of f(0)f(0). [1]

(b) Write down the equation of the horizontal asymptote. [1]

The function gg is defined by g(x)=f(x)g(x) = -f(x) for x0x \geq 0.

(c) Find the range of gg. [3]