Cooldude3966
09.10.2019 •
Mathematics
Which of the following best describes the graph below?
a) it is a function, but it is not one-to-one
b) it is not a function.
c) it is a one-to-one function.
d) it is a many-to-one-function.
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Ответ:
use vertical line test
no vertical line crosses 2 different x values
C
Ответ:
ML=6,CD=7,AC=12,UW=22
Step-by-step explanation:
21.(2x+20):(x+19)=1:2 // x+19=4x+40 // 3x=-21 // x=-7// ML=2x+20=20-14=6
22.(x-3):(4+x)=1:2 // 4+x=2x-6 // x=10 // CD=x-3=10-3=7
23.(x-1):(x+5)=1:2 // x+5=2x-2 // x=7 // AC=x+5=7+5=12
24.(20+x):(x+31)=1:2 // x+31=40+2x // x=-9 // UW=x+31=-9+31=22