I am really struggling with this question. please help.

Answer:
y = 4/5x - 1
Step-by-step explanation:
Step 1: Find slope
(4+1)/(5-0) = 4/5
Step 2: Find b
-1 = 4/5(0) + b
b = -1
Step 3: Put it all together
y = 4/5x - 1
And we have our equation for the line in slope-intercept form!