Answer:
you get 2 coordinates x one, y one, x two, and y two and then do rise over run which is y two - y one over x two - x one say x one is 4 and y one is 7 and x two is 8 and y two is 13 you say 13-7=6 and 8-4=4 so it is 6/4 hope that makes sense
D: (-infinity, 0) U (0, infinity) because you cant have a zero in the bottom of the fraction
If we're only counting 5 vowels (A, E, I, O, U) and 20 consonants (everything else, minus T), then there are

ways of picking the vowels, and

ways of picking the consonants.
We want the word to start with T, and we'll allow any arrangement of the other 4 letters, so that the total number of words is

Keep in mind that this means words like TRIES and TIRES are treated as different.
Each method works diffrently the angles inside them is what matters.
Answer:
The answer to your question is: (4, -1)
Step-by-step explanation:
M = midpoint (-1, 1)
A = (-6, 3)
B = (x, y)

x = 2xm - x1
x = 2(-1) + 6
x = -2 + 6
x = 4

y = 2ym - y1
y = 2(1) - 3
y = 2 - 3
y = -1