Basic Mathematics20805 marksAbsolute value functions
Define absolute value function and Sketch the graph of absolute value.
Define absolute value function and Sketch the graph of absolute value. [5]
The absolute value function is defined as: $$f(x) = x = \begin{cases} x & \text{if } x \geq 0 \ -x & \text{if } x < 0 \end{cases}$$ In other words, the absolute value of a number is its distance from zero on the number line, always expressed as a non-negative value. Key characteristics: - Domain...