Step-by-step explanation:
The distance formula between two points:

Substitute the coordinates of the points.

If a ≤ b < c are the sides of the right triangle, then
a² + b² = c²

used
for a ≥ 0.
therefore ΔABC is a right triangle.
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Answer:
1 -√2
Step-by-step explanation:

tan(7π/8) = 1 -√2
The only equation that matches the first point (x, y) = (2, 2) is that of ...
c) y = 3/2x -1
I believe it is C if that is (-3)^6
2 to the 3rd power (2^3) times x to the second (x^2)