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3 years ago

If a function rule is 2x – 3, what is the output for the input 3?

Mathematics

2 answers:

anzhelika [568]3 years ago

6 0

Answer:

The function rule can be written as: f(x) = 2x-3

So, when we input 3, we replace all of the x's for 3's and have: f(3) = 2(3)-3.

This simplifies to be: f(3) = 3, meaning that 3 is the output.

Hope this helps!

Alenkasestr [34]3 years ago

6 0

Answer:3

Step-by-step explanation:

The output value is y so set an equation at y=2x-3. Now x is the input value so plug in 3 for x. Two times three is 6 and then you have to subtract three from that. So the output value for an input of 3 is 3.

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Graph a linear function which has a rate of change equal to the average rate of change of function f on the interval [-1, 1]. Th

fomenos

<h2>Answer:</h2>

The linear function is given by:

$y=\dfrac{3}{2}x-\dfrac{7}{2}$

<h2>Step-by-step explanation:</h2>

It is given that the rate of change of the linear function is equal to the average rate of change of function f on the interval [-1, 1].

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$m=\dfrac{f(1)-f(-1)}{1-(-1)}\\\\\\m=\dfrac{-2-(-5)}{1+1}\\\\\\m=\dfrac{-2+5}{2}\\\\\\m=\dfrac{3}{2}$

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Here (a,b)=(1,-2)

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Hence, the equation of linear function is:

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3 years ago

Does 2x+4=3x+1/2 have one solution or more or none?

Contact [7]

Answer:

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Step-by-step explanation:

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An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such tha

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Answer:

We conclude that the valve performs above the specifications.

Step-by-step explanation:

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Sample size, n = 130

Alpha, α = 0.02

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First, we design the null and the alternate hypothesis

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We use one-tailed z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

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If the calculated statistic is greater than the the critical value, we reject the null hypothesis and if the calculated statistic is lower than the the critical value, we accept the null hypothesis

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