Josie is playng a computer game where she earns 5 points each time she answers
a question correctly. She loses 0.5 point
when she answers a question incorrectly.
Josie had a score of 8 points before she
answered 9 questions in a row incorrectly.
What is Josie's score now?
A 2.5 points
B. 3.5 ponis
C. 12 points
D. 53 points

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'.

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.