Which linear function shows a direct variation?

Graph A

On a coordinate plane, a line goes through points (negative 1, 0) and (0, 2).
Graph B

On a coordinate plane, a line goes through points (0, negative 2) and (0, 1).

Graph C

On a coordinate plane, a line goes through points (0, 2) and (1, 0).

Graph D

On a coordinate plane, a line goe
s through points (0, 0) and (1, negative 2).
Graph A
Graph B
Graph C
Graph D

idk

step-by-step explanation:

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.

2,160 π

step-by-step explanation: