Find solution to an equation or inequality, Mathematics

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


 (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


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.

Posted Date: 4/6/2013 3:33:12 AM | Location : United States

Related Discussions:- Find solution to an equation or inequality, Assignment Help, Ask Question on Find solution to an equation or inequality, Get Answer, Expert's Help, Find solution to an equation or inequality Discussions

Write discussion on Find solution to an equation or inequality
Your posts are moderated
Related Questions
SUMMATION NOTATION Under this section we require to do a brief review of summation notation or sigma notation.  We will start out with two integers, n and m, along with n a

1.  Draw a pair of tangents to a circle of radius 2cm that are inclined to each other at an angle of 900. 2.  Construct a tangent to a circle of radius 2cm from a point on the c

Find out the hydrostatic force on the following triangular plate that is submerged in water as displayed. Solution The first thing to do here is set up an axis system

draw a right angle isosceles triangle with 9 triangles in it

Given f ( x ) = 3x - 2 determine     f -1 ( x ) . Solution Now, already we know what the inverse to this function is as already we've done some work with it.  Though, it

Do you subtract when you add integers.

Kim is a medical supplies salesperson. Each month she receives a 5% commission on all her sales of medical supplies up to $20,000 and 8.5% on her total sales over $20,000. Her tota

Rule 1 The logarithm of 1 to any base is 0. Proof We know that any number raised to zero equals 1. That is, a 0 = 1, where "a" takes any value. Therefore, the loga

poijn jjjnjb jbjdbjbj