point A (-1-1) point B(-2-1)
Answer:

Step-by-step explanation:
It must end in
(divisible by 2 rule) and the digits must sum to a multiple of 9(divisible by 9 rule).
The digit sum is
.
We want to make
as low as possible because it's a higher digit than
.
If
is as low as possible, we have that the sum is
. Uh-oh.
has to be even! So
doesn't work.
If
, we have that the sum is
. Yay!
So, the answer is 
I am not sure about the formula but if you subtract 8,884 from 10,712 you get 1,828. Then, if you divide that by 4 you get 457. 457 fph(feet per hour) should be the climbers vertical speed.
Answer:
y-intercept is 3 and x-intercept is -3/7
Step-by-step explanation:
to find the y-intercept let x = 0 and solve for y.
y=7(0) +3
y=0+3
y=3
to find the x-intercept let y = 0 and solve for x
0 = 7x + 3
-3 = 7x
-3/7 =x