Question

Precalc hw help?!

Answer 1

Option a would be the correct one.

Explanation:

The above equation is terms of t. The first thing we got to do is to remove this parameter. We know that `sec^2x=1+tan^x` So the above equation can be written as `y=1+x^2` or `y-1=x^2`.

Comparing it with the standard equation of parabola `x^2=4ay` .This represents a parabola with axis as the axis of symmetry and which is concave up.
Hence option a is correct.

Hope it helps!!