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OpenStudy (anonymous):
Given the function f(x) = 5(x+4) − 6, solve for the inverse function when x = 19.
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OpenStudy (anonymous):
@Here_to_Help15
OpenStudy (perl):
first simplify f(x)
y = 5x + 20 - 6
y = 5x + 14
now switch x and y , solve for y
OpenStudy (anonymous):
so it be 5x=y+4
OpenStudy (anonymous):
No.
OpenStudy (anonymous):
im confused
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OpenStudy (anonymous):
Just interchange the letters for y=5x+14
which should give you x=5y+14
OpenStudy (anonymous):
ahhh
OpenStudy (jdoe0001):
\(\bf f(x) = 5(x+4) - 6\implies y=5x+20-6
\\ \quad \\
{\color{brown}{ y}}=5{\color{blue}{ x}}+14\qquad inverse\implies {\color{blue}{ x}}=5{\color{brown}{ y}}+14
\)
and solve for "y"
OpenStudy (anonymous):
alright let me see if i get this
OpenStudy (anonymous):
nopee still confused
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OpenStudy (anonymous):
@jim_thompson5910 can u also help
OpenStudy (anonymous):
by finding y, it will give us the inverse of f(x).
OpenStudy (anonymous):
x=5y+14
let us make y the subject of the formula, so subtract 14 from both sides
OpenStudy (anonymous):
would you put the 14 under the 5x
OpenStudy (anonymous):
go ahead and draw what you have so far.
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OpenStudy (anonymous):
|dw:1415493681848:dw|
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