Question

What is the equation, in slope-intercept form, of the line that passes through (0, 5) and has a slope of −1?

Answer 1

Y=mx+b

m=slope
b=y intercept 

Given the slope: 
y=-1x+b 

(0,5) 
y intercept is 5 because they have already given just y. 
b=5
y=-1x+5

Final answer: y = -x + 5