Given:     and  
prove:   slope of    × slope of    = -1
statementsreasons1.  
      is similar to  given2.property of similar triangles3.  slope of  
      slope of  definition of slope4.  slope of    slope of  multiplying the slopes5.  slope of    slope of  substitution property of equality6.  slope of    slope of    = -1simplifying the right side
the table shows the proof of the relationship between the slopes of two perpendicular lines.  what is the missing statement in  step 2?
a. 

b. 

c. 

d. 


x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)

i think it will be 4feet long of what i comprehend