A line that includes the point (-10,-5) has a slope of -8. What is its equation in point-slope form?

Step-by-step explanation:

The point-slope form of an equation is represented by the formula . Substitute values for the , , and in the formula to write the equation of the line in point-slope form.  

represents the slope, so substitute -8 in its place. The and represent the x and y values of a point the line intersects. Thus, use the x and y values of the point (-10, -5) for the formula. Substitute -10 for and -5 for . This gives the following equation and

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.