Calculus (math)
Write a formula for f^1 (x) if f(x) = (x+5)/(3x4) and state the domain of f1
asked by
Karly

y=(x+5)/(3x4)
3xy  4y = x + 5
x(3y1) = 4y+5
x = (4y+5)/(3y1)
so, f^1(x) = (4x+5)/(3x1)
The domain is all reals except x = 1/3
Note that 1/3 is the horizontal asymptote of f(x). Since f cannot take on the value of 1/3, that value is excluded from the domain of f^1(x)posted by Steve
Respond to this Question
Similar Questions

calculus
Write a formula for f^1 (x) if f(x) = (x+5)/(3x4) and state the domain of F^1 
Calculus
Piecewise function x if −2≤x≤0; x^2 if −2<x<0; 8x. If if −2≤x≤3; (d) Write down an analytic formula for f^{1}, and state its domain and range. 
Calculus
let f(x)=(7+x)/(7x), g(x)=7x/(7x) Find formula for f*g and state the domain of the composition 
calculus
for the given functions f and g, find the following and state the domain of each. f(x)=square root x; g(x)=5x1 a. (f*g)(x)= ? what is the domain of f*g? b. (f/g)(x)=? what is the domain of f/g? please show work 
calculus
for the given functions f&g, find the following and state the domain of each result. f(x)=5x+4/7x8; g(x)=2x/7x8 a.(f+g)(x)= ? what is the domain? b. (f/g)(x)= ? what is the domain? Please show work 
calculus
for the given functions f&g, find the following and state the domain of each result. f(x)= 5x+4/7x8; g(x)= 2x/7x8 a. (f+g)(x)=? what is the domain? b. (f/g)(x)=? what is the domain? 
math
Bronze is an alloy or mixture of the metals copper and tin. The properties of bronze depends on the percentage of copper in the mix. A chemist decides to study the properties of a given alloy of bronze as the proportion of copper 
Calculus
I'm doing graphs/domain/range of basic functions. I have three questions: How do I find the domain and range of a function? (more preferably range...I'm okay but shaky on domain) Ex: f(x)=1/(x^2) Also, how do you write the domain 
calculus
let f(x)=sqrt(x3), g(x)=sqrt(x^2+3) Find a formula for f*g and state the domain of the composition 
Calculus
Explain, using the theorems, why the function is continuous at every number in its domain. F(x)= 2x^2x3 / x^2 +9 A) F(x) is a polynomial, so it is continuous at every number in its domain. B) F(x) is a rational function, so it