Question

Which of the following straight line equations satisfies the given coordinates?
$(0,-1),(1,0),(3,2),(4,3)$

• A. $y=2x+2$
• B. $y=x-1$
• C. $y=2x-1$
  
• D. $y=x+1$

Answer 1

The correct option is B $y=x-1$

Option (a): $y=x-1$
Substituting the values of $x$ in $y=x-1$ to find $y:$
For $x=0,y=0-1.$ So $y=-1$
For $x=1,y=1-1.$ So $y=0$
For $x=3,y=3-1.$ So $y=2$
For $x=4,y=4-1.$ So $y=3$
Hence, all values of $x$ and $y$ satisfy the equation $y=x-1.$