Answer:
y = - x + 1
Explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
given slope m = - 1 , then
y = - x + c ← is the partial equation
to find c substitute (5, - 4 ) into the partial equation
- 4 = - 5 + c ( add 5 to both sides )
1 = c
y = - x + 1 ← equation of line