What is the domain of #f(x)=2x+ 6#?

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Answer 1 · 2018-05-23T14:04:12

#(-oo,oo)#

Since #f(x) = 2x+6# is a line there are no restrictions on the function's input so the domain is all real numbers #(RR)# or interval notation:

#(-oo,oo)#

graph{2x+6 [-13.21, 6.79, -3.08, 6.92]}

Answer 2 · 2018-05-23T14:06:24

#x inRR#

#y=2x+6#

#"is a linear function with no restrictions on it's domain"#

#"domain "x inRR#
graph{2x+6 [-10, 10, -5, 5]}