Describe at least two advantages and two disadvantages of multiple choice questionnaires.

Advantages:

- It is easier for people to choose an option rather than to write an essay. The questionnaire reflects what the person is thinking and what the person's point of view is, which as a result makes it easier to analyze and conclude results

- A wide range of questions can be asked within one questionnaire, which makes it an effective way to conduct a survey/test

Disadvantages:

- A person has to read carefully in order to answer each question and sometimes there is lack of concentration by the person filling in the questionnaire

- It is slightly difficult to write an effective questionnaire, that would able to test a vast knowledge/  conduct a survey so that an effective  analysis can be done

Answer explained below

Step-by-step explanation:

Advantages:

1. Multiple choice questionnaires enable the person to analyse all the options and conclude the correct answer . He can just choose the correct option instead of explaining the whole answer .

2. Number of questions can be asked which in some way make it an effective way to conduct a survey .

Disadvantages:

1. A person should have an idea about each and every option in order to find the correct answer . If he has no idea about any of the option then it becomes very difficult for him to conclude the result .

2.  It is somewhat difficult to write a proper and useful questionnaire, that would enable to  conduct a survey so that required information can be obtained .

a

step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c