Question

Let f(x)= mx+b be a function with m and b real numbers. Use this for Problems 5 and 6.

5. Show that the domain of this function is the set of all real numbers.

6. Show that the range of the function may or may not be the set of all real numbers.

Answer 1

@mathmale

Answer 2

for a line, the domain is all value, meaning you can pick any x value

Answer 3

and it will have a y value there

Answer 4

now where as the range is concerned

Answer 5

if your line is horizontal, that means your y value for all x , can only be one value

Answer 6

for example