A direct variation function contains the points (-9,-3) and (-12,-4). Which equation represents the function? y= -3x, y= -x/3, y

Question

Jobisdone [24]

3 years ago

13

A direct variation function contains the points (-9,-3) and (-12,-4). Which equation represents the function? y= -3x, y= -x/3, y

= x/3, y= 3x

Mathematics

2 answers:

zalisa [80] · Answer 1 · 2022-07-11T17:27:15+03:00

zalisa [80]3 years ago

7 0

Answer:

I think that the answer is D

disa [49] · Answer 2 · 2022-07-11T15:19:27+03:00

disa [49]3 years ago

3 0

To find the equation, find the slope from the two points. The slope formula is (y1-y2)/(x1-x2). Plugging in the two points, you should get 3 as your slope.

As a line, the answer would be y=3x. Therefore, y=3x represents the function described.