Question

If P(t) has coordinates (4/5, 3/5), find the coordinates of P(t + π).
a. (3/5, 4/5)
c. (-4/5, -3/5)
d. (4/5, -3/5)

Answer 1

Comment: If you have an angle in the first quadrant and add π (180º), in which quadrant is the new angle and what are the signs of the x and y.

Answer 2

Would it be c?

Answer 3

seems correct to me too.

Answer 4

c. (-4/5, -3/5)

Answer 5

Thanks!