Answer:
y=1/2x-1 1/2
Step-by-step explanation:
x = 5 y = 1. to get to 0 on the x side you minus 5. but to get to the unknown number on the y side you get to minus the half of five which is 2.5. 1-2.5 =-1.5
-1.5 is the y intercept which is b in the equation.
justification:
y=1/2x-1.5
1=1/2•5-1.5 which is a true math sentence.
( I don't know if you understand anything above but let me know if there is a problem in understanding it)