Answer:
y = -4x + 5
Explanation:
The equation for the line, in slope-intercept form will take the following equation format which is y = mx + b.
Where,
b = y-intercept = 5 (this is where the line intercepts the y-axis, and also, x = 0 here)
m =

Use any two points on the line. Using (0, 5) and (1, 1), calculate m as follows:
m =

Substitute m = -4, and b = 5 into y = mx + b.
y = -4x + 5