Directions How to Answer

Aptitude Test Topic: Functions

Functions include Linear functions and Graphical functions.

Directions

Solve the given question and choose the best answer from the given choices.

To give the answer click/tap the option alphabet for your answer choice. for correct answer green check and for wrong answer a red cross will appear along with a button to show explanation with or without video of the question answer.

Functions: Graphing Functions Practice MCQ

Question Statement:

Line l includes the points (7,4) and (-3,4). Line k includes the points (8,-4) and (5,-4). Which of the following statements is true of these lines?

The lines are distinct but neither parallel nor perpendicular.

Insufficient information is given to answer this question.

The lines are perpendicular.

The lines are identical.

The lines are parallel.

Explanation:

Correct Answer: E

We calculate the slopes of the lines using the slope formula.

The slope of line l is

$m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}} = \frac{4 - 4}{7 - (- 3)} = \frac{0}{10} = 0$

The slope of line k is

$m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}} = \frac{- 4 - (- 4)}{8 - 5} = \frac{0}{3} = 0$

The lines have the same slope, making them either parallel or identical.

Since the slope of each line is 0, both lines are horizontal, and the equation of each takes the form y=b, where b is the y-coordinate of each point on the line. Therefore, line l and line k have equations y=4 and y=−4.This makes them parallel lines.

Question: 5 Test: 1 of 2 Next Test

Tests

You are taking Aptitude Test No. 1

Each aptitude test is comprised of 10 except the last test which might have fewer than 10 in some topics.

You are at question (MCQ) number 5 and Test Number 1 of Functions: Graphing Functions. To deal with Functions questions, you must take lesson on the subject. In case of science and Art subjects revise your text books and in case of general aptitude topics take lessons from the topic page.

The question: Line l includes the points (7,4) and (-3,4). Line k includes the points (8,-4) and (5,-4). Which of .... with options: The lines are distinct but neither parallel nor perpendicular., Insufficient information is given to answer this question., The lines are perpendicular., The lines are identical. can be solved with the concepts and understanding of Functions.