All the points in the doubly-shaded area are in the solution set.
3x-5y+6z=4
-3x+9y-15z=15
4y-9z=19
-2x+6y-10z=10
2x- 4y+ z= 13
2y-9z=23
4y-9z=19
-2y+9z=-23
2y=-4
y=-2
3x+10+6z=4
x - 6 +5z=-11
3x+6z=-6
x +5z=-5
3x+6z=-6
-3x-15z=33
-9z=27
z=-3
x+6-15=-5
x-9=-5
x=4
The LCM of two given numbers will be greater. For example, a factor is the two numbers multiplied together to get that certain m=number that you chose, which is usually pretty less, than the LCM is the multiple of those certain numbers, and if you put those together the answer to the factors (multiples) are most larger than the factors itself.
Answer:
Each line segment joining a vertex of ABCD to the corresponding vertex in the image is perpendicular to the line of reflection, EF. That is, the lines intersect at a 90 degree angle.