Question

Which of the following equations is linear?
Y= | x |
Y = 2^x
Y= 1/3^x
X^2 +5 =Y​

Answer 1

None of them are linear

Y = |x| is a absolute value
Y= 2^x is an exponential
Y= 1/3^x is an exponential
X^2+5=y is a quadratic