Let f(x) = x3 + 9x2 − 3x − 1. Identify the function g that reflects f across the x-axis.
1 answer:
Using translation concepts, it is found that the function g that reflects f across the x-axis is given by:
- A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.
- A reflection across the x-axis means that the function is <u>multiplied by -1</u>.
In this problem, the function is:
With the reflection across the x-axis, it is multiplied by -1, and hence:
You can learn more about translation concepts at brainly.com/question/20720324
You might be interested in
Answer:
18.
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean and standard deviation
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean
and standard deviation
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
For a proportion p in a sample of size n(n being at least 30), the sampling distribution of the sample proportion will be approximately normal with mean and standard deviation
In this question:
n has to be at least 30. So the choice that answer this question, a size of n too small to use a normal curve to approximate the sampling distribution, is 18.