Find out the x-intercepts, Mathematics

Assignment Help:

Find out the x-intercepts & y-intercepts for each of the following equations.

                           y =x2 +x - 6

Solution

As verification for each of these we will also sketch the graph of each of function. We will leave the details of the sketching to you to determine. 

                                                      y = x2 + x - 6

Let's first determine the y-intercept(s).  Again, we do this by setting x = 0 & solving for y. usually this is the easier of the two.  Thus, let's determine the y-intercept(s).

                                y =(0)2  + 0 - 6 = -6

Thus, there is a single y-intercept : (0, -6) .

The work for the x-intercept(s) is approximately identical except in this case we set y = 0 and solve for x.  Following is that work.

0 =x2 + x - 6

0 = (x + 3) (x - 2)

⇒         x =- 3, x = 2

For this equation there are two x-intercepts: (-3, 0) & (2, 0) . 

For verification reason here is sketch of the graph for this equation.

171_Sketch the graph.png


Related Discussions:- Find out the x-intercepts

Shares and dividend, by purchasing rs.10 shares for rs.40 each mala gets 5%...

by purchasing rs.10 shares for rs.40 each mala gets 5% income on her investment. what rate of dividend is the company paying? what will be the amount of dividend if she buys 120 sh

Algebra, Hi, I don''t know how to solve 2(5x+3)

Hi, I don''t know how to solve 2(5x+3)

Determine the area of the regular octagon, Determine the area of the regula...

Determine the area of the regular octagon with the following measurements. a. 224 square units b. 112 square units c. 84 square units d. 169 square units b. See

Java program for sorting algorithms, Introduction: In this project, yo...

Introduction: In this project, you will explore a few sorting algorithms. You will also test their efficiency by both timing how long a given sorting operation takes and count

Definition of the definite integral , Using the definition of the definite ...

Using the definition of the definite integral calculate the following.                                                             ∫ 0 2  x 2   + 1dx Solution Firstly,

Exercise of concrete operational stage, Which of the following statements d...

Which of the following statements do you think are true about children? Indicate with 'T' for true and for false. Give reasons for your choice. a) Most primary school children a

What is the value of the largest consecutive integer, The sum of three cons...

The sum of three consecutive even integers is 102. What is the value of the largest consecutive integer? Three consecutive even integers are numbers in order such as 4, 6, and

Diffrential integral , All the integrals below are understood in the sense ...

All the integrals below are understood in the sense of the Lebesgue. (1) Prove the following equality which we used in class without proof. As-sume that f integrable over [3; 3]

Maths, whats 100 + 90 - 6

whats 100 + 90 - 6

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd