SOLUTION: Given g(x)= -12x-5 Find g^-1(-5)

Algebra.Com
Question 1191153: Given g(x)= -12x-5
Find g^-1(-5)
Found 2 solutions by MathLover1, ikleyn:
Answer by MathLover1(20849)   (Show Source): You can put this solution on YOUR website!

Given
Find
first find

.....swap variables
......solve for


.......substitute for






Answer by ikleyn(52778)   (Show Source): You can put this solution on YOUR website!
.
Given g(x)= -12x-5
Find g^-1(-5)
~~~~~~~~~~~~~~~~


            To answer the question, you do not need to express the function   g^(-1)(x)   explicitly:  it is an excessive unnecessary work.

            What you really need is to solve equation  g(x) = -5  and find  x.

            It is just enough and can be done in couple of lines. 


To answer the question, you need to solve equation g(x) = 5,  which is

    12x - 5 = -5   and implies   12x = 0,   x = 0.    


ANSWER.  x= 0.

Solved.



RELATED QUESTIONS

Given f(x) =-6x^2-8x I) (f°f)(1) Given g(x)= -12x-5 Find g^-1(5) (answered by Theo,ikleyn)
g(3x+2)=12x+5 find... (answered by josgarithmetic)
Given the function g(x)=x2+12x find the indicted values if g(3) and... (answered by edjones)
Given g(x) = 9x2 + 4,find the following. g(3) = g(-1)= g(0)= g(1/2)= g(c) = g(c+5) (answered by MathLover1)
Given g(x) = 8x2 + 1,find the following. g(3) = g(−1) = g=(0)= g=(1/2)=... (answered by MathLover1)
Given g(x)=5/x+3 find... (answered by eperette)
Given g(x)= 5/x+3, find... (answered by Fombitz)
Given g(x) = 5 / x + 3, find... (answered by Alan3354)
Given: f(x)=3x-5 and g(x)=-5x+2 1. Find f[g(-1)] 2. Find g[f(4)] (answered by tutorcecilia)