Answer:
y = 0.55x + 5.5
Explanation:
Start with y = mx + b. We already know that b = 5.5, so now we have:
y = mx + 5.5. Next, subst. -10 for x and 0 for y, obtaining 0 = m(-10) + 5.5. Then 10 m = 5.5, and m = 5.5/10, or 0.55.
Thus, the equation is y = 0.55x + 5.5.