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3 years ago

Consider the graph of f(x) below.

Mathematics

2 answers:

Phantasy [73]3 years ago

5 0

I've searched online on what a graph look like in each given function and based on my online search, the given image of of the equation f(x) is a CUBIC FUNCTION.

A cubic function is like this: f(x) = ax³ + bx² + cx + d

The given graph can have this equation:

y = (x + 1) (x - 1) (x - 3)

ElenaW [278]3 years ago

5 0

Answer: Cubic

Step-by-step explanation:

Linear function is a function which graph is a straight line,

According to the given graph,

Function f(x) is not a line,

Hence, it can not be a linear function.

The quadratic function is a curved function which has two roots that is its graph has two coordinate intercept.

But f(x) has three roots ( by the graph )

That's why it can not be quadratic function.

The cubic function is also a curved function that has three roots,

And, f(x) has three roots ( shown in the graph)

⇒ It is a cubic function.

Exponential or logarithm function is a function that shows exponential growth or decay.

But f(x) is not growing or decaying exponentially.

That's why it is not an exponential or logarithm function.

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3 years ago

According to the World Health Organization (WHO) Child Growth Standards, the head circumference for boys at birth is normally di

Elena L [17]

Answer:

$z = \frac{X -\mu}{\sigma}$

This z score tell to us how many deviations we are below or above the mean for a given normal distribution.

For the case of Eddie we got:

$z= \frac{33.2-34.5}{1.3}= -1$

And for the case of Sue we got:

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So then for both cases we see that Eddie and Sue are 1 deviation below the true mean for each gender so then the best conclusion for this case would be:

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Step-by-step explanation:

We can define the random variable X as the head circumference for boys at birth and we know that the distribution for X is given by:

$X\sim N(\mu = 34.5, \sigma=1.3)$

Similarly we can define the random variable Y as the head circumference for boys at birth and we know that the distribution for Y is given by:

$Y\sim N(\mu = 33.9, \sigma=1.2)$

And we know that Eddie was born with 33.2 cm and Sue with 32.7 cm for the head circumference . Since we are interested to determine which child's head circumference is smaller relative to other children of the same sex, we can use the z score formula given by this formula:

$z = \frac{X -\mu}{\sigma}$

This z score tell to us how many deviations we are below or above the mean for a given normal distribution.

For the case of Eddie we got:

$z= \frac{33.2-34.5}{1.3}= -1$

And for the case of Sue we got:

$z = \frac{32.7-33.9}{1.2}= -1$

So then for both cases we see that Eddie and Sue are 1 deviation below the true mean for each gender so then the best conclusion for this case would be:

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3 years ago

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lesantik [10]

Answer:

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V = 22.5

Step-by-step explanation:

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