jeff100 jeff100

07-07-2016
Mathematics

contestada

If ƒ(x ) = 3x + 1 and ƒ -1 = , then ƒ -1(7) =

Respuesta :

olemakpadu olemakpadu

10-07-2016

f(x) = 3x + 1

let f(x) = y

y = 3x + 1

y - 1 = 3x

3x = y - 1

x = (y - 1)/3

From y = f(x), x = f⁻¹(y)

x = (y - 1)/3

f⁻¹(y) = (y - 1)/3

f⁻¹(7) = (7 - 1)/3 = 6/3 = 2

f⁻¹(7) = 2

Answer Link

Otras preguntas

Find the solution for the system of linear equations by substitution: y = x + 6 y + 2x = 0

Let f(x) = x^2 + 2x and g(x) = 2x. Evaluate the composition (fºg)(2).

please i need help

Models of different combinations of elements are shown Image water oxygen gas amino acid glycine Which image(s) show a molecule? Only the second image, water,

C Reducing taxes increases the amount of money in the economy because A. the government has more money available to spend В. banks have more money available to

hi friends....new to brainly

For Carl's birthday, his grandparents gave him a $50 gift card to a local movie theater. The theater charges $6 admission for each movie. How can Carl use an ar

PLEASE ANSWER!! Part A Add colons where needed in the sentences below. 1. At 910 this morning, we'll be leaving for the natural history museum. 2. Please bring

please help me :) Part A - Independent Clause Identify the independent clause in each sentence below. 1. We arrived late because we couldn't find the theater. 2

if each genre has a 25% chance of playing, about how many times should we expect each genre playing out of 20