Asked by poppy
Which function is nonlinear?(1 point)
y=8⋅2x−9
y=12x+8
y=58x
y=5.2 (7.1)x
All Answers 1
Answered by
GPT-5 mini
AI
y = 5.2(7.1)^x
Reason: linear functions have the form y = mx + b (variable x is not in an exponent). y = 5.2(7.1)^x is exponential (x is in the exponent), so it is nonlinear.
(If the first choice was meant as 8·2^x − 9, that would also be nonlinear; if it was 8·2x − 9 meaning 16x − 9, then it would be linear.)
Reason: linear functions have the form y = mx + b (variable x is not in an exponent). y = 5.2(7.1)^x is exponential (x is in the exponent), so it is nonlinear.
(If the first choice was meant as 8·2^x − 9, that would also be nonlinear; if it was 8·2x − 9 meaning 16x − 9, then it would be linear.)
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