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Find the slope of the line that contains the points named.
K(c + d, c-d), L(c-d, c+ d)

A.0
B.-1
C 1​


Sagot :

Answer:

        B.   - 1

Step-by-step explanation:

The slope of the line passing through two given points:  [tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

K(c + d, c-d)   ⇒     x₁ = c + d,     y₁ = c - d

L(c-d, c+ d)   ⇒      x₂ = c - d,     y₂ = c + d

So, the slope:

                     [tex]m=\dfrac{c+d-(c-d)}{c-d-(c+d)}=\dfrac{c+d-c+d}{c-d-c-d}=\dfrac{2d}{-2d}=-1[/tex]