can someone help me with these questions please?

Answer:
3 is -3, 4 is 3
Step-by-step explanation:
In slope intercept form (y = mx+b)
m is the slope
b is the y-intercept
y = mx+b
y = -1(x) + 3
b = 3
Answer:
3
Step-by-step explanation:
The y-intercept is the point that crosses the y-axis
mx+b would be the form and the b is your y-intercept