Answer:
slope = - 4, y- intercept = 9
Explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = - 4x + 9 is in slope- intercept form
with slope m = - 4 and y- intercept c = 9
A proportional relationship has the form
y = mx
y = - 4x + 9 is not in this form
Hence the relationship is not proportional