Concept explainers
a)
ToForm:The equation of the line that passes through the point
a)
Answer to Problem 74E
The equation of the line that passes through the point
Explanation of Solution
Given:
A point
Concept Used:
Two distinct non vertical lines are parallel if and only of their slopes are equal.
that is
Calculation:
Given a point
Finding the slope of the parallel line
That is
Comparing with the general slope intercept form of the equation of a line
That is
Hence, slope of the parallel line is
Since, the lines are parallel.
So, the slope of required line is
Since, the required line passes through the point
The equation of the line with point
Therefore,the equation of the line that passes through the point
Conclusion:
The equation of the line that passes through the point
b.
ToForm:The equation of the line that passes through the point
b.
Answer to Problem 74E
The equation of the line that passes through the point
Explanation of Solution
Given:
A point
Concept Used:
Two distinct non vertical lines are perpendicular if and only of their slopes are negative reciprocals of each other.
Calculation:
Given a point
Finding the slope of the perpendicular line
That is
Comparing with the general slope intercept form of the equation of a line
That is
Hence, slope of the perpendicular line is
Since, the lines are perpendicular.
So, the slope of required line is
Since, the required line passes through the point
The equation of the line with point
Therefore, the equation of the line that passes through the point
Conclusion:
The equation of the line that passes through the point
Chapter 1 Solutions
EBK PRECALCULUS W/LIMITS
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