For a cartesian equation

Given r = <span>10 tan(θ) sec(θ)

Therefore,</span>the curve is a parabola opening upward with vertex (0, 0).
ANSWER

EXPLANATION
The vertex of the graph is at

The equation of the graph in vertex form is given by the formula,

The above graph has a minimum point, hence

When we put these values into the equation we obtain,

This implies that,

The point (-2,0) lies on the line.



The correct answer is D.
Answer:
Not enough information
Step-by-step explanation:
You gave the height, but there is no length. You need both the height and length because the area of a triangle is 1/2bh
See picture for solution steps and answer.
1. Distribute the Negative Signs
2. Combine like terms
-2x^2 + 12x-7