Question

Which of the following options has (have) the correct combination of the curve and its graph?

• A. $y=x+1,-2\le x\le 3$
  
  
• B. $y=2x+3,x\le 7$
  
  
• C. $y=3,x\ge -3$
  
  
• D. $x=4$
  
  

Answer 1

Answer: (A), (C), (D)

$x=4$



$y=x+1,-2\le x\le 3$
Graph will be parallel to $y=x$ and passes through $(0,1)$


Now $-2\le x\le 3$ so part left to $x=-2$ and part right of $x=3$ will vanish




$y=2x+3,x\le 7$
Graph should pass through $(0,3)$


Given graph is not passing through $(0,3)$


$y=3,x\ge -3$
Graph of $y=3$


Since $x\ge -3$, the left part of $x=-3$ will vanish
So the correct graph is




Graph of $x=4$