Find the slope of the line on the graph. write your answer as a fraction or a whole number, not a mixed number or decimal.

The slope of the line is:

Step-by-step explanation:

The slope can be calculated with this formula:

You need to choose two points of the line. You can pick the point (6,2) and the point (-6,-6)

You can identify that:

Now, you must substitute these values into the formula:

With this procedure you get that the the slope of the line on the graph is:

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.