A train travels at 100 miles per hour. An equation can be written that compares the time (t) with the distance (d). Define the domain and range. a. the domain is time (t) and the range is distance (d).
b. the domain is time (t) and the range is 100.
c. the domain is 100 and the range is time (t).
d. the domain is distance (d) and the range is time (t)

The answer would be, A the domain is time and the range is distance.

Step-by-step explanation:

The train is travelling at 100 miles per hour, thus the equation would be d=100t meaning that the distance equals 100 times the amount of time. Now, that means that the input is the amount of time it's been going, and the input is the domain. if the input is the domain,  then the only thing left to be the input (range) is the y value, or, in this case, the d value.

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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'.