Question

Which of the following functions is linear?

Question 1 options:

y = x2 + 4x − 12


y = | x + 2 |


y = x3


y = 2x + 1

Answer 1

Answer: y = 2x + 1

Explanation:

Answer 2

Answer: D

Explanation:

Can't be A or D because they have exponents which makes it an exponential function and it can't be B either because it has a function within an absolute value.