To set of values obtained in exercise 142 and 143

Arthur Pratt

Arthur Pratt

Answered question

2021-12-10

To set of values obtained in exercise 142 and 143 using the table feature of a graphing utility.
Given: From Exercise 142, the inequality is 3(x6)>2x2.
From Exercise 143, the expression is 2(x+4)>6x+16.

Answer & Explanation

Paul Mitchell

Paul Mitchell

Beginner2021-12-11Added 40 answers

Proof: 
Consider the inequality 3(x6)>2x2 
To find the inequality's solutions, take the following actions:
Step 1: Open the TI83 calculator. Plot the equations on the left and right by clicking the "Y=" button.
Step 2: Use Table feature of TI83 calculator. First press "2nd" and then "Graph" button to get the table of both the inequalities. 
XY1Y20182115021223944665386010 
Step 3: The values of equations 3(x6)  and  2x2 are equal at x=4.At x=4, value of both the equations is 6. 
So, for x<4, the graph of left-hand side equation lies above the graph of right-hand side equation. 
Consider the inequality 2(x+4)>6x+16 
Use the following steps to obtain the solutions of the inequality 
Step 1: Open the TI83 calculator. Go to "Y=" button and plot the left-hand and right-hand equations. 
Step 2: Use table feature of TI83 calculator. First press "2nd" and then "Graph" button to get the table of both the equations as follows: 
XY1Y26420521440832224416100816 
Step 3: The values of equations 2(x+4)  and  6x+16 are equal at x=3. At x=3, value of both the equations is -2. 
So, for x<3, the graph of left-hand side equation lies above to graph of right-hand side equuation. 
Hence, the results are verified.

ol3i4c5s4hr

ol3i4c5s4hr

Beginner2021-12-12Added 48 answers

Step 1
Given:
From Exercise 142, the inequality is 3(x6)>2x2
From Exercise 142, the expression is 2(x+4)>6x+16
The table
XY1Y20182115021223944665386010
Step 2
consider the inequality 2(x+4)>6x+16
The table:
XY1Y26420521440832224416100816
So, fro x<3, the graph of left-hand side equation lies above to graph of right-hand side equation.

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