Your Answer is

Correct Answer is A

Explanation

For the image of an unfamiliar function, you can use the exhaustive method, that is, substitute x = -3, -2, -1, 0, 1, 2, 3 and other special values, and compare whether the function image in the option is consistent with the calculation The values ​​match.

For this question:

x=-1, y =-1

x=1, y=3

x=2, y =5

x=3, y=7

It is easy to see that the image of this function is a straight line, and the answer is A.

It is also possible to subtract x from the upper and lower sides of the formula, and it becomes: y=2x+1 (x ≠ 0) $$, that is, the image of the above function does not include the origin.