The image shows a geometric representation of the function f(x) = x2 – 2x – 6 written in standard form.

what is this function written in vertex form?

f(x) = (x –1)2 – 7

f(x) = (x +1)2 – 7

f(x) = (x –1)2 – 5

f(x) = (x +1)2 – 5

we know that

To find the equation in vertex form, we need to factor the function

so

Complete the square. Remember to balance the equation

Rewrite as perfect squares

in this problem

the vertex is the point

therefore

the answer is

The function written in vertex form is equal to

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

16 is the absolute value

step-by-step explanation: