If f(x)=3x, what is f^-1(x)?

2 answers:

Anton [14]2 years ago

5 0

Answer: f-1(x) = x/3 + 5/3

Step-by-step explanation: The inverse function is found by replacing the independent variable with the dependent variable and vice versa like so

f(x) = 3x-5 becomes x = 3y-5; now we solve for y

3y = x +5 or y = x/3 + 5/3

Therefore the inverse function becomes: f-1(x) = x/3 + 5/3

3 0

Answer: -1(x)] = x

Step-by-step explanation:

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Svetach [21]

Answer:

1001

Step-by-step explanation:

5 0

3 years ago

timofeeve [1]

Answer:

- 5 < x

Step-by-step explanation:

To solve, we need to isolate the variable: x

5x - 7 < 8x + 8

Subtract 5x from both sides

5x - 5x -7 < 8x -5x + 8

- 7 < 3x + 8

Subtract 8 from both sides

- 7 -8 < 3x + 8 -8

-15< 3x

Divide both sides by 3

- 15/3< 3x/3

- 5 < x

5 0

3 years ago

Kipish [7]

The required mixed number is $3\frac{5}{6}$ . The calculations are attached with the solution as an image.

What is a mixed number ?

A bit represented with its quotient and remainder is a mixed bit. For illustration,21/3 is a mixed bit, where 2 is the quotient, 1 is the remainder.
So, a mixed bit is a combination of a whole number and a proper bit. A mixed bit, also called a mixed number, is a whole number and a bit together.
The bit is written to the right of the whole number.
A mixed number is formed by combining three corridor a whole number, a numerator, and a denominator. The numerator and denominator are part of the proper bit that makes the mixed number.