Math what's the equation in function notation

y = 1 , y = x

Step-by-step explanation:

Consider the line with points (0,1) and (2,1)

Slope of a straight line = change in y ÷ change in x

Slope of this line = = 0

Taking another point (x,y) on the line;

Slope =   = 0

y - 1 = (x - 2)0

y = 1 (and this is the equation of the line)

Consider the line which passes through points (-1,-1) and (0,0)

Slope = = 1

Taking another point (x,y) on the line;

slope = = 1

y = x  (and this is the equation of our second line)