Answer:
Option 3
Step-by-step explanation:
Exclude option 1: a linear function will not have a repeated y coordinate
Exclude option 2: the y coordinate is - 3, - 4, - 5, gradually increasing. Thus the line is a curve, not linear function
Option 3: - 8 is the change in every y coordinate. The line is linear because the slope is constant
Exclude option 4: the difference of y coordinate is becoming greater and greater, thus the line is a curve. Not an linear function.
Brainliest please~