Tell whether the set of ordered pairs {(3, −6), (4, −9), (5, −12), (6, −15)} satisfies a linear function. explain.

-yes; there is no constant change in x that corresponds to a constant change in y.
-yes; there is a constant change in x that corresponds to a constant change in y.
-no; there is a constant change in x that corresponds to a constant change in y.
-no; there is no constant change in x that corresponds to a constant change in y.

idk

step-by-step explanation:

use that smart brain

answer: median

step-by-step explanation:

the median is the middle value when a data set is ordered from least to greatest

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.