SOLUTION: Identify a function that is linear. answer choices: a) f(x) = 5x − 9 b) f(x) = 2x^2 + 3 c) f(x) = -4/(x+1) d) f(x) = (x^5) − 9

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Question 453978: Identify a function that is linear.
answer choices:
a) f(x) = 5x − 9
b) f(x) = 2x^2 + 3
c) f(x) = -4/(x+1)
d) f(x) = (x^5) − 9
Found 2 solutions by solver91311, richwmiller:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Anything that has a variable raised to a power or has a variable in a denominator is non-linear.

John

My calculator said it, I believe it, that settles it
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Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
linear means no powers greater than one
b and d have powers greater than one
function means one y for each x
if you graph c you will see it is not a line