Question

Consider the function f(x)= |x-21| graphed below. Find each characteristic of f(x).

Answer 1

From the graph we notice that:

$\text{Domain}=(-\infty,\infty)$$\text{Range}=\lbrack0,\infty)$$x-\text{intercept}=(2,0)$$y-\text{intercept}=(0,2)$$\text{Increasing interval=}(2,\infty)$$\text{Decreasing interval=}(-\infty,2)$