   Chapter 4.1, Problem 76E Finite Mathematics and Applied Cal...

7th Edition
Stefan Waner + 1 other
ISBN: 9781337274203

Solutions

Chapter
Section Finite Mathematics and Applied Cal...

7th Edition
Stefan Waner + 1 other
ISBN: 9781337274203
Textbook Problem

Select one: If the addition or subtraction of two linear equations results in the equation 3 = 3 , then the graphs of those equations are(A) equal(B) parallel(C) perpendicular(D) not of the above.

To determine

The correct option for the statement, “If the addition or subtraction of two linear equations results in the equation 3=3, then the graphs of those equations are” from the provided options.

Explanation

Given Information:

The provided options are,

(A) Equal

(B) Parallel

(C) Perpendicular

(D) None of the above

Consider the statement, “If the addition or subtraction of two linear equations results in the equation 3=3, then the graphs of those equations are”.

To find out the correct option, let’s take an example as,

For example:

Consider the equations,

x+y=32 …… (1)

x+y=32 …… (2)

Add the equations (1) and (2),

x+y=32    x+y=32_2x+2y=32+32

Solve it further,

2x+2y=32+322(x+y)=2(32)

Put the value of (x+y) from equation-1 as,

2(32)=2(32)3=3

To plot the graph of the equations, find the ordered pairs of the equation

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