What is the slope of the line that contains these points?
x
y
13
11
14
6
15
1
16
-4.
slope:

-5 slope

Step-by-step explanation:

I see the points as

x y

13, 11

14, 6

15, 1

16, -4

(13, 11) , (14, 6), (15, 1), and (16, -4)

slope =  (6 - 11) / (14 - 13) = - 5/1 = -5

try again:   (1 - 6)/(15 -14) = -5/1 = -5

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.