There are 4 quadrants in a coordinate plane The starting point is in the second quadrant, while the finishing point is in the fourth quadrant. The starting point is a reflection of the checkpoint across the y-axis Part A The points are given as: For the starting point, the x-coordinate is negative, while the y-coordinate is positive. This implies that the starting point is in the second quadrant For the finishing point, the x-coordinate is positive, while the y-coordinate is negative. This implies that the finishing point is in the fourth quadrant Part B The checking point is given as: The starting point is given as: Notice that the y-coordinate of both points are the same, but the x-coordinates are negated. This means that the starting point is a reflection of the checkpoint across the y-axis, and vice versa

answer: you need the equation in the question so i can answer it

step-by-step explanation:

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

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