Question

The functions h and m are defined on the set R of real numbers by h: x®ax +b
and m: x ® cx -d, where a, b, c and d are constants. If h o m = m o h, show that
(c-1)b = (a-1)d

Answer 1

Answer:

• Another way to identify the domain and range of functions is by using graphs. Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the
• x
• -axis. The range is the set of possible output values, which are shown on the
• y
• -axis. Keep in mind that if the graph continues beyond the portion of the graph we can see, the domain and range may be greater than the visible values.
• Graph of a polynomial that shows the x-axis is the domain and the y-axis is the range