The slope of the line below is 2. Use the coordinates of the labeled point to find a point-slope equation of the line.

107

101.9)

10

10

10+

O A. y - 9 = -2(x - 1)

O B. y + 9 = 2(x + 1)

O c. y - 9=2(x-1)

O D. y + 9 = -2(x + 1)

answer: it's d

step-by-step explanation:

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)

oof

step-by-step explanation: