Concept explainers
Solve each equation. Graph and check your solutions.
To Solve: The equation for ‘ d’ ,graph and check
Answer to Problem 6P
The values ared = {-7, 7}
Explanation of Solution
Given information: It is given that
Calculation:
Divide both sides by 7
Now, Solve the absolute value equation for ‘ d’ , it gives two values for ‘ d’ .
The graph is
Check:
Plug in the d as -7 into the equation and check.
When d=-7
7
7(7) =49
49 =49
Yes! The equation is true for
When d =7
7
7(7) =49
49 =49
Yes, the equation is true for
Chapter 3 Solutions
High School Math 2012 Common-core Algebra 1 Practice And Problem Solvingworkbook Grade 8/9
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