Find solution to an equation or inequality, Mathematics

Assignment Help:

Illustrates that each of the following numbers are solutions to the following equation or inequality.

(a) x = 3 in x2 - 9 = 0

(b) y = 8 in 3( y + 1) = 4 y - 5

Solution

 (a) First we plug the proposed solution in the equation.

                   633_Find Solution to an equation or inequality1.png

                    9 - 9 = 0

                      0 = 0     

Thus, what we are asking here is does the right side equivalent to the left side after we plug in the proposed solution. That is the meaning of the "?" above the equal sign in the first line.

As the right side & the left side are the similar we say that x = 3 satisfy the equation.

 (b) Thus, we desire to see if y = 8 satisfies equation.  First plug the value into the equation.

914_Find Solution to an equation or inequality.png

                                                             27=27

Thus, y = 8 satisfies the equation and thus is a solution.

We have also done a rapid example of numbers that aren't solution therefore we can see how these will work as well.


Related Discussions:- Find solution to an equation or inequality

Some interpretations of the derivative, Some interpretations of the derivat...

Some interpretations of the derivative Example    Is f ( x ) = 2 x 3 + 300 +4 increasing, decreasing or not changing at x = -2 ? Solution:  We already know that the rate

How many white marbles does the jar contain? , A jar contains 54 marbles e...

A jar contains 54 marbles each of which is blue , green or white. The probability of selecting a blue marble at random from the jar is 1/3  and the probability of selecting a green

One tailed test, One Tailed Test It is a test where the alternative hy...

One Tailed Test It is a test where the alternative hypothesis (H 1 :) is only concerned along with one of the tails of the distribution for illustration, to test a business co

Find out the length of the parametric curve, Find out the length of the par...

Find out the length of the parametric curve illustrated by the following parametric equations. x = 3sin (t) y = 3 cos (t) 0 ≤ t ≤ 2? Solution We make out that thi

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

Negative function , Negative function : Several functions are not positive...

Negative function : Several functions are not positive however.  Consider the case of f (x ) =x 2 - 4 on [0,2].  If we utilizes n = 8 and the midpoints for the rectangle height w

Detemine multiplying a polynomial by a monomial, Detemine Multiplying a Pol...

Detemine Multiplying a Polynomial by a Monomial? To multiply a polynomial by a monomial, use the distributive property. Let's start by talking about ordinary numbers. Say th

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