The top one is y=4
The bottom one is y=1/3x+3
Step-by-step explanation:
The bottom line goes up one while going right 3 this means it’s rise over run is 1/3 after that just find the y intercept (where the line passes through the y axis) and put that at the end: y=1/3x+3
For the top one it’s the same except the rise over run is 0 (this is because it can’t go up at all) if you plug in the 0 it makes the x=0 meaning it’s a flat line with the equation y=4