Can you also explain how you got the answer

Answer:
I recoment using the formula because its different ways its taught
Step-by-step explanation:
maybe look up different formula's
Answer:
The answer is D
Step-by-step explanation:
The y values are going up by 2
For linear equations you follow y = mx + b
M = 2
B would be 1 since that is what y is when x is 0
So it must be D