Determine whether the given pair (x, y) is a solution of the given system of linear equations in each number. 1. (2, 3); x- y = - 2
3x + y = 3

2. (1, 1); 2x + 7y = 9
3x - 10y = -7

3. (-2, -1); 5x - 3y = -7
-x - y = 3

4. (0, 0 ); 8x - 4 y = 0
2x + 3y = 7

5. (1, 0); 3x = 3y + 3
y = 5x - 5

i believe the answer is letter c) 8

step-by-step explanation:

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.

h/o/e/s mad

step-by-step explanation:

si si si