arnold2619
03.11.2019 •
Mathematics
Aline that includes the points (6,h) and (7,−10) has a slope of −7. what is the value of h ?
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Ответ:
the answer is h= -3
Step-by-step explanation:
add 7 to -10 to find the value of h
Ответ:
-3
Step-by-step explanation:
You can use
to find the slope of a line going through 
and 
.
I like to line up the points and subtract vertically. Then put 2nd difference over 1st difference.
(6,h)
minus
(7,-10)
------------
-1 h-(-10)
This also said to be equal to -7:
Multiply -1 on both sides:
Subtract 10 on both sides:
[texh=-3[/tex]
So if h=-3 then the slope of the line going through (6,h) and (7,-10) is -7.
Let's test it:
(6,-3)
minus
(7,-10)
----------
-1 7
So the slope is 7/-1=-7. This is the intended goal.
The check is good.
Ответ:
Reflecting across the X axis, rotating 180 and then reflecting across the Y axis will put the triangle in the same place it was originally.
The location of B is (-7,2)