371,063 views
12 votes
12 votes
I got this question wrong already once and I just got a new one but im struggling to solve it, so please help me if possible.

I got this question wrong already once and I just got a new one but im struggling-example-1
User John Topley
by
3.1k points

1 Answer

10 votes
10 votes

\begin{gathered} x=\sqrt[]{2t} \\ y=2t-3 \end{gathered}

From the first equation, we have:


t=(x^2)/(2)

Here, we must take in consideration that x can't be negative, sinte we derive this relation from a square root function.

Replacing t with this result in the parametric function for y, we have:


\begin{gathered} y=2(x^2)/(2)-3 \\ y=x^2-3 \end{gathered}

Answer:

Option A: The rectangular equation is y = x²-3 with the restriction x>=0

User Feganmeister
by
3.1k points