how do I do this question

Answer:
the answer is b
Step-by-step explanation:
so to find slope intercept you must do the formula y = mx+b
the m is the slope or rate of change and the b is where it crosses the y axis
so to find the slope you do rise over run so you do 1 rise and 2 run or over 2 and then see that it crosses the y axis at negative 1