Graph the function. Describe the domain and range. y = { -4x, if x ≤ 0
{ 4, if x > 0
(Piecewise functions)

The graph of y = log(x) is defined only for x>0. The graph is

a monotonic increasing function over its domain. It starts from an

asymptotic "minus infinity" when x approaches 0. It passes through

the value y = 0 when x = 1.

The graph is illustrated at the link below.

the domain is all real number

the range is [0, infinity)

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb