what is the range and domain of the function of y=2x+0

Question

The range R:    and the domain D : all the values that the function can have .

Answer 1

Domain is defined as all values of x where a solution can be arrived at.

Range is defined as the solution set for the values of x (domain).

 

y = 2x + 0

y = 2x

x =y/2

 

So, for any value of x, there will be a solution.  There is a whole number in the denominator, so there are no undefined solutions.

 

Given that information, the domain is all real numbers, written like (-∞,∞)

 

The range of a domain that contains all real numbers is, all real numbers (-∞,∞)