Yana is using an indirect method to prove that segment de is not parallel to segment bc in the triangle abc shown below:
a triangle abc is shown. d is a point on side ab and e is a point on side ac. points d and e are joined using a straight line. the length of ad is equal to 4, the length of db is equal to 5, the length of ae is equal to 6 and the length of ec is equal to 7.
she starts with the assumption that segment de is parallel to segment bc.
which inequality will she use to contradict the assumption?
4: 9 ≠ 6: 13
4: 9 ≠ 6: 7
4: 13 ≠ 6: 9
4: 5 ≠ 6: 13

  4:9 ≠ 6:13

Step-by-step explanation:

The ratios of corresponding segments will be equal if DE || BC. Yana can compare AD:AB versus AE:AC. She will find they're not equal, as expressed by ...

  4 : 9 ≠ 6 : 13

answer: 20

step-by-step explanation:

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.