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Goshia [24]
3 years ago
10

For f(x) = 4x+1, what is the output for the input 5?

Mathematics
1 answer:
blsea [12.9K]3 years ago
7 0

Answer: <em>f(x) </em>= 21 .The output is 21 when the input is 5.

Step-by-step explanation:

f(x) = 4x+1  Substitute the input, 5, for x on the right side  <em> f(x) is the equivalent of  y, the output you are looking for</em>

<em>f(x) </em>= 4(5) + 1

<em>f(x) </em> = 20 +1

<em>f(x) </em>= 21

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What is the domain of the function y = 2 StartRoot x minus 5 EndRoot?
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Answer:

The domain of the function should be:

'x greater than or equal to negative -5'.

Hence, option A is true.

Step-by-step explanation:

Given the expression

2\sqrt{x-5}

The domain of a function is the set of input or arguments for which the function is real and defined

We know that the value, inside the radicand, is the number found inside a radical symbol which must be greater than 0, otherwise, it would make the function undefined,

i.e.

x-5 ≥ 0

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In other words, the domain of the function should be:

'x greater than or equal to negative -5'.

Therefore, the domain of the function:

x ≥ 5

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Hence, option A is true.

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