Question

Does anyone know the answers to this test???OFFERING LOTS PF POINTS. Just Incase the picture isn’t loading it’s the parametric functions test Part 1 in pre calculus.

Answer 1

The correct choice is C

Explanation:

The given curve is described by the parametric equations:

`x=4-t`

`y=t^2-2`

Let us eliminate the parameter by making t the subject in the first equation and substitute into the second equation;

`t=4-x`

We substitute this into the second equation to get:

`y=(4-x)^2-2`

This is the equation of a parabola whose vertex is at (4,-2)

The correct choice is C