Answer: the answer is C.
Step-by-step explanation:
You simply use the elimination strategy.
We know any equation which begins with 'negative x' can't be it since our line is a 'positive' gradient.
so eliminate a and d.
b on the other hand has 2x + 2 meaning the 'y intercept' is + 2 which isnt the case in the graph as you can clearly see it intercepts at the 'negative 2 region' below.
Hope this helps!
