Concept explainers
(a)
To find: the equation for the given situation.
(a)
Answer to Problem 47PPE
The equation in the form of slope intercept form is
Explanation of Solution
Given data:
Repairing charges of computer:$50
Additional charges:$35 per hour
Calculation:
Let y be the cost of repair and hours taken for repairing be x
Repairing charges is $50 and additional charges for x hours is $35x
Total charges of repairing :
The equation in the form of slope intercept form is
Conclusion:
The equation in the form of slope intercept form is
(b)
To Graph: the equation.
(b)
Explanation of Solution
Given data:
Repairing charges of computer:$50
Additional charges:$35 per hour
Calculation:
Graph of the equation:
Conclusion:
The graph is a straight line.
(c)
Analyzing slope of the equation.
(c)
Answer to Problem 47PPE
Slope of the equation is positive.
Explanation of Solution
Given data:
Repairing charges of computer:$50
Additional charges:$35 per hour
Calculation:
As the charges are adding in the repairing charges and slope of the equation is positive so it is an increasing graph because of which lines forms in first quadrant.
Conclusion:
Slope of the equation is positive.
Chapter 5 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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