Question

Eliminate the parameter

Answer 1

$y = x -2, x\geq 1$

Step-by-step explanation:

In the question given correct parameter is -  2)  $y = x -2, x\geq 1$

Method -

$x= t^2 + 1$    ........................(1)

$y = t^2 - 1$  ..........................(2)

Let's solve the equation 1,

⇒   $x = t^2 +1$

⇒   $t^2 = x - 1$          

•         Put the value of  t² in equation 2

                  $y =t^2 - 1 \\y = x -1 -1\\y = x - 2$

      Here we got the y parameter as $y = x -2$

So the option no .2 is the correct option 2) $y = x -2, x\geq 1$