The table below models the cost, y, of using a high-
efficiency washing machine and a standard washing
machine over x number of years.
which equatic
efficiency was
years?
which equatic
washing mach
number of
years
high-
efficiency
cost($)
standard
cost ($)
after how man
machines cost
which washing
purchase if ker
525
430
550
460
575
490

answer: no

step-by-step explanation:

you are only given the cost not the amount of pounds.

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'.