Thursday

March 5, 2015

March 5, 2015

Posted by **lindsay** on Friday, December 7, 2012 at 4:28pm.

a. For what value of x is 'f' undefined?

b. Find 'f' inverse and hence solve f(x) =1/3.

c.Show that fg(x) -gh(x).

- math -
**Steve**, Friday, December 7, 2012 at 4:53pmf is undefined when x-3 is zero, because division by zero is undefined.

f = (2x+1)/(x-3)

(x-3)f = 2x+1

fx-3f = 2x+1

(f-2)x = 3f+1

x = (3f+1)/(f-2)

now plug in x(1/3) to get -6/5

dunno what h is

**Answer this Question**

**Related Questions**

algebra - 1 (a) A function passes through the points (0, -5), (1, 0), (2, 7). ...

College Algebra - Find the inverse of the function below. Graph the function ...

Math 3 - Find the inverse of the function f(x) = 5 – e^(x-1). Determine the ...

Math - Inverse Functions - Find the inverses of the following functions. y = 3(x...

pre calculus - Find the inverse of the function below. Graph the function below ...

precalculus - Find the inverse of the function below. Graph the function below ...

inverse - find f^-1 (x). (this is asking me to find the inverse) f(x) = -(x-2)^2...

Algebra - The function f(x)=x 3 +1 4 x−1 4 is a monotonically increasing ...

math - The cost of producing q articles is given by the function C=f(q)=100+2q...

Algebra(1st one was typo) - The function f(x)=x^3 +1/4 x −1^4 is a ...