slope is 0, and (0,5) is on the line

Question

I need help!!

Answer 1

A slope of zero means the line is horizontal, so its equation is

 

y = constant.

 

Since it passes through (0,5), its equation is 

 

y = 5.

 

Note this has the form

 

y = mx + b

 

where m = 0 and b = 5:

 

y = (0)x + 5