How do you find the domain and range of #y = 3x + 8#?

1 Answer
Mar 20, 2016

Answer:

I found all the real #x# and all the real #y#.

Explanation:

Your equation represents, graphically a straight, line of slope #3# and passing through #x=0,y=8#.

graph{3x+8 [-10, 10, -5, 5]}

It can accept any real #x# value and gives you, as a result, any real #y# value; so the domain is all the real #x# and range all the real #y#.