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The parabola hits (-2,1) and (0,-1).
As you can see from the pictures, we can immediately cross out options B and D, since both parabola open upwards.
From the pictures, we can see that the answer is C, since only that parabola opens downwards and hits the points (-2,1) and (0,-1).
Answer:
A
Step-by-step explanation:
First, we are already given the sides adjacent and opposite to ∠x. Therefore, we can use the tangent function. Recall that:

The opposite side is 20 while the adjacent side is 14.
Plug in the numbers. Use a calculator:

Edits: Improved Answer. Removed Wrong Answer.
Answer: A
Step-by-step explanation:
Step-by-step explanation:
For the triangles to be congruent, TS = WV (2x + 8 = 16)
Therefore 2x = 8 and x = 4.