HELPS PLS IM TRYING TO FIGURE THIS OUT

Answer:
a is -6 and b is -4
Step-by-step explanation:
Since your slope is 5/2, it means the function will go up five units and to the right two units. Since we know this, we can see that a needs to be 4 spaces to the left of the second point, thus making it -6, and b needs to be 5 above the second point, thus making it -4