When is the function decreasing?

iwjddjdj

asdgeryomakew

salamat sa point sorry

Step-by-step explanation:

sana soeeeyrwag ka

C

Step-by-step explanation:

The function is decreasing from when x=15 to x=40.

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)

i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.