If f(x) and f–1(x) are inverse functions of each other and mc005-1.jpg, what is f–1(8)?

Asked by maham237 @ 23/12/2020 in Mathematics viewed by 316 People

Answered by maham237 @ 23/12/2020

For this case we have the following function:
f (x) = 2x + 5
Clearing x we have:
2x = y - 5
x = (y-5) / 2
Rewriting:
f (x) ^ - 1 = (x-5) / 2
Evaluating x = 8:
f (8) ^ - 1 = (8-5) / 2
f (8) ^ - 1 = 3/2
Answer:
f (8) ^ - 1 = 3/2
option 2

Given the function f(x) = log4(x + 8), find the value of f−1(2).

Asked by maham237 @ 25/12/2020 in Mathematics viewed by 578 persons

5. Given the function f(x) = log4(x + 8), find the value of f^−1(2). A. f−1(2) = 4 B. f−1(2) = 8 C. f−1(2) = 10 D.f−1(2) = 17

What is the range of the function f(x) = 3x2 + 6x – 8?

Asked by maham237 @ 25/12/2020 in Mathematics viewed by 389 persons

What is the range of the function f(x) = 3x2 + 6x – 8? {y|y ≥ –1} {y|y ≤ –1} {y|y ≥ –11} {y|y ≤ –11}

What is the domain of the step function f(x) = ⌈2x⌉ – 1?

Asked by maham237 @ 22/12/2020 in Mathematics viewed by 349 persons

What is the domain of the step function f(x) = ⌈2x⌉ – 1? -{x| x ≥ –1} -{x| x ≥ 1} -{x| x is an integer} -{x| x is a …

If a polynomial function f(x) has roots –8, 1, and 6i, what must also be a root of f(x)?

Asked by maham237 @ 18/12/2020 in Mathematics viewed by 349 persons

If a polynomial function f(x) has roots –8, 1, and 6i, what must also be a root of f(x)? –6 –6i 6 – i 6

Given the parent functions f(x) = log10 x and g(x) = 3x − 1, what is f(x) • g(x)?

Asked by maham237 @ 25/12/2020 in Mathematics viewed by 424 persons

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Asked by admin @ 27/11/2021 in Mathematics viewed by 294 persons

Find the inverse function F -1 (X) for the given function F (X)

Given the parent functions f(x) = 5x − 1 and g(x) = 3x − 9, what is g(x) − f(x)?

Asked by maham237 @ 22/12/2020 in Mathematics viewed by 414 persons

Given the parent functions f(x) = 5x − 1 and g(x) = 3x − 9, what is g(x) − f(x)? g(x) − f(x) = 3x − 8 − 5x g(x) …

Let g(x) be the reflection of f(x) = x 2 + 3 in the x-axis. what is the function rule for g(x)?

Asked by maham237 @ 25/12/2020 in Mathematics viewed by 361 persons

Let g(x) be the reflection of f(x) = x 2 + 3 in the x-axis. What is the function rule for g(x)? A. g(x) = -x 2 - 3 B. …

Fiona has proved that a function, f(x), is an arithmetic sequence. how did she prove that?

Asked by maham237 @ 25/12/2020 in Mathematics viewed by 283 persons

Fiona has proved that a function, f(x), is an arithmetic sequence. How did she prove that? A. She showed that an explicit formula could be created. B. She showed that …