Answer:
The correct choice is C
Step-by-step explanation:
The given curve is described by the parametric equations:


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

We substitute this into the second equation to get:

This is the equation of a parabola whose vertex is at (4,-2)
The correct choice is C
Answer:
4
Step-by-step explanation:
each side of figure A is it's matching side on figure B, but divided by 4
5 seconds
because that is the positive zero of that equation