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The slope of a line is found by dividing a change in the y value by the change in the x value through the same length of the line being investigated. It can said to be the delta y over the delta x, or the change in y over the change in x (for a given segment of the line). We can also say "rise over run" of the line and mean the same thing. The slope of a line is a pure number, one without units. And it can have a positive or negative sign. A line that goes "up" when it goes from left to right has a positive slope. A line that goes "down" when going from left to right will have a negative slope. Picture a graph with a unit on the x axis equal in length to a unit on the y axis. A line of exactly 45 degrees to the horizontal (or vertical, for that matter) will have a slope of exactly 1 if it slopes up from left to right. The same line sloping down from left right will have a slope of -1. Lines of less than 45 degrees to the horizontal will have slopes of less than 1. Lines with angles greater than 45 degrees to the horizontal will have slopes of greater than 1. The signs of all these lines will be in accordance with the above suggestions, i.e., lines going up from left to right have positive slope, and going down from left to right have negative slopes.
Wiki User
∙ 15y ago
Wiki User
∙ 10y agoPoints: (x1, y1) and (x2, y2)
Slope: y1-y2/x1-x2
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How do you find the slope of a parallel line?
Parallel lines have the same slope. So if you know the slope of a line in question, or you can calculate it, then you know the slope of any line parallel to that line.
How do i find the slope of a graphed line?
you look at the line and see if there are any direct points on the line the slope formula
The slope of a line is -3. Find the slope of a line that is perpendicular to this line. The slope of a line is -3.?
The slope of two lines are perpendicular only if their slopes multiplied together equal -1 (m1*m2 = -1). So if a line has a slope of -3 then a line perpendicular to this one has a slope of -1/-3 or 1/3.
How do you find a slope of a line perpendicular?
If two nonvertical lines are perpendicular, then the product of their slope is -1.An equivalent way of stating this relationship is to say that one line is perpendicular to another line if its slope is the negative reciprocal of the slope of the other. For example, if a line has slope 3, any line having slope - 1/3 is perpendicular to it. Similarly, if a line has slope - 4/5, any line having the slope 5/4 is perpendicular to it.
Find the slope of the line perpendicular to the line y equals 2x plus 1?
The slope of the perpendicular is -(1/2) .
How do you find slope altitude?
If the slope of a line is m then the slope of an altitude to that line is -1/m.
How do you find the slope of a parallel line?
Parallel lines have the same slope. So if you know the slope of a line in question, or you can calculate it, then you know the slope of any line parallel to that line.
How do you find the slope of a line parallel to another line?
The slope of both lines will be the same.
How do you find a slope in a line?
the slope of a line = the Change in Y divided by the Change in X
How do I find the slope of a line?
you look at the line and see if there are any direct points on the line the slope formula
What does the slope examples of rates inclued?
Why do we need to find the slope of a line? The slope of a line tells us how something changes over time. If we find the slope we can find the rate of change over that period.Why do we need to find the slope of a line?The slope of a line tells us how something changes over time. If we find the slope we can find the rate of change over that period. - See more at: http://www.algebra-class.com/rate-of-change.html#sthash.KmE8ACMR.dpuf
How do i find the slope of a graphed line?
you look at the line and see if there are any direct points on the line the slope formula
How do you find a slope of a line parallel?
Line a is parallel to line b, m, and . Find .
The slope of line a is 3 what is the slope of a line perpendicular to a?
To find the slope of a perpendicular line, take the negative reciprocal of the slope of the given line. (Flip the top and bottom of the fraction and change the sign.) The slope of 3 can be written as 3/1. The slope of a line that is perpendicular is -1/3.
How to find the slope of a line x equals -12?
The equation for the slope of a line is y=mx+b
How do you find the equation of a line by the slope?
An equation of a line requires two parameters. The slope, by itself, is not enough.
How to find the slope to an equation?
If it is the equation for a line, then it can be rearranged into the format y = mx + b, where m is the slope of the line, and b is the point where the line intercepts the y-axis.If it is not for a straight line, then the slope is changing with x, and the derivative of the function would find the slope at a particular x.
