Answer:
y=4
Step-by-step explanation:
You can ignore the 3 and 6 because this has no y value change(rise over run)
This is a straight horizontal line so the equation is y=4.
Slope=0
Answer:
The area of a circle can be found using the formula 
Step-by-step explanation:
Answer:
slope -3
y-intercept 19
Step-by-step explanation: