michibabiee
26.01.2021 •
Mathematics
Which one is the right answer
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Ответ:
A. f(g(x)) =x and g(f(x))=x and f and g are inverses.
Step-by-step explanation:
A function g is the inverse of function f if
f(g(x)) = g(f(x))=x
Given: f(x)= x+4 , g(x) = x-4
f(g(x)) = f(x+4) = (x-4)+4
= x-4+4 = x
i.e. f(g(x)) =x
g(f(x))= g(x-4) = (x-4)+4 =x
i.e. g(f(x))=x
Hence, f(g(x)) =x and g(f(x))=x and f and g are inverses.
Ответ:
option F
Step-by-step explanation:
The line that slopes backwards, has an x-intercept at 9 and y-intercept at 4.
The equation is given by:
This implies that:
The line that slopes forward has a y-intercept of -2 and a slope of 3
The equation is given by:
or in standard form:
The correct choice is F