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Question
What is the measure of the angle at which the line 7x-3y=10 intersects the x-axis?
Hi Jon,
Since the slope of the line is 7/3 (solve for y and you get
y = 7/3 x -10/3), if you draw a triangle where the line crosses the x-axis (10/7, 0), by going 3 right and 7 up, you have a right triangle, and the angle you're looking for has opposite side 7 and adjacent side 3, so
angle = tan^-1(7/3) = 66.8 degrees.
Steve
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Answers by Expert:
Steve Holleran
Expertise
I can help with all math questions from basic math to Calculus. Whether it`s consumer questions, or questions from high school or college students, I have probably dealt with it at some time in my career.
Experience
33 years teaching experience in NJ public schools
Education/Credentials
B.S. Mathematics : Wake Forest University 1972
M.S. Mathematics : Monmouth University 1981
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