2006 iTest Problems/Problem 5
Problem
A line has y-intercept and forms a right angle to the line . Find the x-intercept of the line.
Solution
The given line's equation is . Since the wanted line forms a right angle to the given line, the slopes of the two lines multiply to , so the slope of the wanted line is . Thus, the equation of the wanted line is .
To find the x-intercept of the line, substitute for and solve for .
The x-intercept of that line is .
See Also
2006 iTest (Problems, Answer Key) | ||
Preceded by: Problem 4 |
Followed by: Problem 6 | |
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