ayeitscharis ayeitscharis

01-09-2016
Mathematics

contestada

Let f(x)=x^2 -81. Find f^1(x)

Respuesta :

01-09-2016

Hello,

I suppose you mean -1! else f(x)=f^1(x)

y=x²-81
-> x=y²-81 (exchahge x and y)
->y²=x+81 (solve for y)
[tex]y= \sqrt{x+81} \ or \ y=- \sqrt{x+81} [/tex] It is because (f^-1)(x) is not a function!

with x>=-81

Answer Link

Otras preguntas

Here's a super easy one. What part of 72 is 36a?

Describe how energy is transferred from the sun to producers and then to consumers

In the united states congress about 50 percent of the offices are held by women. a. True b. False

Select all that are measures of angles coterminal with a 145° angle. –575° –215° –145° –35° 215° 415° 505° 865°

An inserted graphic in Excel is A. inserted in cell A1. B. inserted in the active cell. C. a nonmovable object. D. a freely moving object. Please h

Meiosis stages: Do you know the stages the nucleus is intact, the stage the chromatids are attached, and the location of the centrioles?

Find last years salary if, after a 4% pay raise, this years salary is $31,200

Name two definite articles and two indefinite articles in Spanish. Question 4 options: él, ella, uno, una el, él, la ella el, la, un, una un, uno, una, ella

What is the perimeter of this equilateral triangle? Equilateral triangle with one side labeled 18 centimeters. centimeters

Let |x| + |y| = c where, c is s real number. Determine the number of points that would be on the graph of the equation for each given cases: Case 1: c < 0 C