Answer:
A
Step-by-step explanation:
The answer is A I hope it helped!
Answer:
0
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Step-by-step explanation:
give brainliest or vanish
Well you can use the Pythagorean Theorem Formula a

+b

=c

. Just plug in the first 2 least numbers into a and b, and see if your answer(c) is equal to the last number. Hope I helped!
I don't believe so, last time i checked for two lines to be perpendicular they needed to have opposite reciprocal slopes.
For Example
If one line has a slope of 5
The second line has to have a slope of -1/5
Y = mx + c
gradient = -6-9/-8-4
= -15/-12
= 1.2
when x = 4 and y = 9,
9 = 1.2(4) + c
c = 9 - 4.8
= 4.2
The slope of the line is y = 1.2x + 4.2 .