Question

Eliminate the parameter.

x = t2 + 1, y = t2 - 1

Answer 1

solve t2 from first equation,
plug it in second equation

Answer 2

Or you can subtract equation 2 from equation 1


x = t^2 + 1
y = t^2 - 1
---------
??

Answer 3

so t^2=-1 @ganeshie8
and that would = 0... @jim_thompson5910

Answer 4

on the left side, you'll have x-y

on the right you'll have (t^2 + 1)-(t^2 - 1) and the right side simplifies to t^2 - t^2 + 1 - (-1) = 0t^2 + 2 = 2

Answer 5

So you'll get x-y = 2 using the subtraction method

Answer 6

i only have these answers...
y = x + 2, x ≥ 1

y = x - 2, x ≥ 1

y = x2 - 2, x ≥ 1

y = x2 + 2, x ≥ 1

Answer 7

now solve x-y = 2 for y

Answer 8

oh duh im stupid :P so y=x-2

Answer 9

you're not stupid and yes, it's y=x-2

Answer 10

thank you c:

Answer 11

you're welcome