Posted by babygirl on Sunday, September 18, 2011 at 9:45pm.
Did you know that if a line makes an angle of Ø with the x-axis
then tanØ = slope of the line ?
so if tanØ = 2
Ø = 63.4°
if tanØ = -3
the line leans to the left and the line makes an acute angle of 71.6° with the x-axis
so a line with slope -3 is steeper.
The sign of the slope tells you which way the line leans.
if slope > 0, it leans to the right
if slope < 0 , it leans to the left
if slope = 0, the line is horizontal, has no lean.
Related Questions
Pre-Algebra - Please let me know if I figured these out correctly. Directions: ...
algebra 3 - what is the equation of the line with {3,3} and is perpendicular to ...
algebra - Find the slope of any line perpendicular to the line through points (0...
Math - 1) What is the slope of a line that is parallel to y = 2? 2) What is the...
Algebra - Find the slope of any line perpendicular to the line through the ...
Algebra - Is it possible to find the slope of a line if the equation has two ys...
Algebra - I'm suppose to write an equation with the following information: ...
Algebra1 - Complete this sentence with the correct choice: y = 4 is a horizontal...
Math-Algebra - Consider the line 9x+4y=-9 What is the slope of a line parallel ...
slope - In a rectangle ABCD, the slope of line AB is 1 and the slope of line BC ...
For Further Reading
