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+1
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1.

2.

 Nov 5, 2018
edited by Guest  Nov 5, 2018
 #1
avatar+3994 
+2

Part of Question 1: The slope can be found by y_2-y_1/x_2-x_1, so for line AB, the slope is -7/4. 

 Nov 5, 2018
 #2
avatar+98172 
+1

1.

 

AB slope   = -7/4

BC slope  =  [ 4 - 3 ] / [ 3 - - 4]    1 / 7

CD slope  =  [ -1 - 4 ] / [ 6 - 3 ] =  -5/3

AD slope  =  [ -1 - - 4 ] / [ 6 - 0 ]  = 3 / 6  = 1 / 2

 

 

Neither a parallelogram or a trapezoid

 

Neither pair of opposite sides are parallel

 

 

cool cool cool

 Nov 5, 2018
 #3
avatar+98172 
+1

2.

 

C  =  ( a, b)

 

AC  =  sqrt [ ( a - 0)^2  + (b - 0)^2  ]  =  sqrt [a^2 + b^2 ]

 

BD  = sqrt [ ( a - 0)^2 + ( 0 - b)^2 ]  =  sqrt [ (a)^2 + (-b)^2 ]  = sqrt [ a^2 + b^2 ]

 

 

 

cool cool cool

 Nov 5, 2018

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