Answer:
y-intercept = 4 and slope = -2
Explanation:
Y intercept is a point where the graph crosses y axis
The graph crosses the y axis at 4
So y intercept is 4
y intercept = 4
To find out slope , lets pick two points from the graph and apply slope formula (0,4) and (2,0)

x1= 0 , x=2, y1=4, y2=0

slope= -2
y-intercept = 4 and slope = -2