How do you find the domain and range of #y = 2x - 1#?

1 Answer
Aug 5, 2015

Answer:

Domain: #(-oo, +oo)#
Range: #(-oo, + oo)#

Explanation:

Your function has no restrictions for its domain, since it's defined for all #x in RR#.

Its domain will thus be #(-oo, + oo)#.

The same can be said for its range. Your function can take any avalue of #x# and produce any value of #y in RR#, so its range will be #(-oo, + oo)#.

graph{2x-1 [-10, 10, -5, 5]}