Linear equations

Question

Can you show me step by step how this equation is solved?   y=1/2x-1;(6,2),(0,-1)

Answer 1

(6,2) & (0,-1)  represent two points on the line defined by the equation: 

y=1/2x-1 How do we know this is true you ask?

 

 Because the solution is given as an ordered pair, we can substitute the values into the equation to see if we end up with a true statement. 

 

Take (6,2) and substitute the values into the linear equation:

 

2=1/2*(6)-1

2=3-1

2=2

 Do the same thing for the other point:

-1=1/2*(0)-1

-1=0-1

-1=-1

 

 

Take (0,-1)  and substitute the values into the