Answer:
Answer is B and C Triangles 1, 3 and 4 appear to be congruent
Say x = 12 and y = 4
12 - 4 = 8
Number 1
2(12) - 4(4) = 8
24 - 16 = 8
Number 1 is your Answer
Answer:
B=9 (I'll solve right now, just so you get the answer)
Step-by-step explanation:
![2x^2+14xy-36y^2=2(x+By)(x-2y)](https://tex.z-dn.net/?f=2x%5E2%2B14xy-36y%5E2%3D2%28x%2BBy%29%28x-2y%29)
Expand right side by distributing
![(2x+2By)(x-2y)](https://tex.z-dn.net/?f=%282x%2B2By%29%28x-2y%29)
Use the FOIL method to simplify (first, outside, inside, last):
![(a+b)(c+d)=ac+ad+bc+bd](https://tex.z-dn.net/?f=%28a%2Bb%29%28c%2Bd%29%3Dac%2Bad%2Bbc%2Bbd)
![(2x*x)+(2x*(-2y))+(2By*x)+(2By*(-2y))\\\\](https://tex.z-dn.net/?f=%282x%2Ax%29%2B%282x%2A%28-2y%29%29%2B%282By%2Ax%29%2B%282By%2A%28-2y%29%29%5C%5C%5C%5C)
Simplify
![2x^2-4xy+2Byx-4By^2](https://tex.z-dn.net/?f=2x%5E2-4xy%2B2Byx-4By%5E2)
Re-insert
![2x^2+14xy-36y^2=2x^2-4xy+2Byx-4By^2](https://tex.z-dn.net/?f=2x%5E2%2B14xy-36y%5E2%3D2x%5E2-4xy%2B2Byx-4By%5E2)
Cancel out ![2x^2](https://tex.z-dn.net/?f=2x%5E2)
![14xy-36y^2=-4xy+2Byx-4By^2](https://tex.z-dn.net/?f=14xy-36y%5E2%3D-4xy%2B2Byx-4By%5E2)
Move all terms to one side
![14xy-36y^2+4xy-2Byx+4By^2=0](https://tex.z-dn.net/?f=14xy-36y%5E2%2B4xy-2Byx%2B4By%5E2%3D0)
Simplify
![18xy-36y^2-2Byx+By^2=0](https://tex.z-dn.net/?f=18xy-36y%5E2-2Byx%2BBy%5E2%3D0)
Factor out the common term 2
![2(9xy-18y^2-Byx+2By^2)](https://tex.z-dn.net/?f=2%289xy-18y%5E2-Byx%2B2By%5E2%29)
you have to show the graph
Answer:
Multiply the coordinate by the scale factor, 1/5 to get (7/25,-5/20). You can simplify this to (7/25, -1/4)