URGENT PLEASE HELP Which equation represent the line which passes through the point (-3, -4) and has a slope of -2? a. y=-2x-10

b. y=-2x+2

A:-2x-10

Step-by-step explanation:

Think of it like this for the y coordinate:

y=-2x-10

y=-2(-3)-10

y=6-10

y=-4

you have now found the y coordinate and by this point should be able to tell without doing the rest but if you are unsure you can do this now that you know y:

-4=-2x-10

+10 to both sides

(6=-2x)/2

(-x=3)*-1 as x is negative

x=-3

so now you know the x and y coordinate that it can pass through which proves that this is the correct choice.

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.

step-by-step explanation: