how to find the slope of an undefined line?
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A vertical line has undefined, or infinite, slope. If you attempt to find the slope using rise over run or any other slope formula, you will get a 0 in the denominator. Since division by 0 is undefined, the slope of the line is undefined. The equation of a line with undefined slope will look like x = 'something.
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if you didn't have an equation, just a graph, and needed to find slope you would use the formula rise/run. Pick a point and count how far you go up the y-axis and how far you move horizontally on the x-axis. the slope would be -5 because the its in y=mx+b form where m is the slope, and b is the y-intercept.
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['Pick two points on the line and determine their coordinates.', 'Determine the difference in y-coordinates of these two points (rise).', 'Determine the difference in x-coordinates for these two points (run).', 'Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope).']
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Algebra Examples Use the slope-intercept form to find the slope. The slope-intercept form is y=mx+b y = m x + b , where m m is the slope and b b is the y-intercept. Using the slope-intercept form, the slope is Undefined. All lines that are parallel to m=37 m = 3 7 have the same slope of Undefined .
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A vertical line has undefined slope because all points on the line have the same x-coordinate. As a result the formula used for slope has a denominator of 0, which makes the slope undefined.
328190
Use the slope formula to find the slope of a line given the coordinates of two points on the line. The slope formula is m=(y2-y1)/(x2-x1), or the change in the y values over the change in the x values. The coordinates of the first point represent x1 and y1. The coordinates of the second points are x2, y2.
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['Get the two equations for the lines into slope-intercept form. ... ', 'Set the two equations for y equal to each other.', 'Solve for x. ... ', 'Use this x-coordinate and plug it into either of the original equations for the lines and solve for y.']
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['Slope = change in y over the change in x.', 'Slope = (y2 - y1)/(x2 - x1)', 'Slope = rise over run.', 'You can pick any two points on a line to calculate the slope.', 'You can double check your answer by trying different points on the line.', 'If the line is going up, from left to right, the slope is positive.']
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The slope of a line describes how steep a line is. Slope is the change in y values divided by the change in x values. Use the graph below to find the slope of the line that goes through the points (1,2)left parenthesis, 1, comma, 2, right parenthesis and (6,6)left parenthesis, 6, comma, 6, right parenthesis.
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The Slope of a Line. The slope of a line is how steep the line is and whether the line is an uphill or a downhill. Slopes can be whole numbers or fractions and either positive or negative.
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['(x1, y1) = (-2,-1)', '(x2, y2) = (4,3)', 'slope = ((y2-y1)/(x2-x1))']
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['x+y=7.', '⇒y=−x+7. ⇒y=(−1)x+7.', 'Here y=(−1)x+7.', '⇒slope=−1 and y-intercept =7.', 'Hence slope of the line is −1.']
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You can't find the slope of a line if only given one point. If you had a visual representation of the line such as a graph or a table you could find a second point and then use the formula for slope, y = (y2-y1) / (x2-x1).
575252
A vertical line, by definition has a slope which is undefined. Therefore the slope of any line perpendicular to y=10 is undefined.
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['Horizontal and Vertical Lines and Their Slopes.', "Recall the slope of a line is a numerical measure of the steepness of the line. We can find a line's slope using the slope formula or the slope-intercept form. • ... ", ', = 1,3 and.', ', = 4,3, we get.', '= − − ... ', '3 − 3. 4 − 1.', '= = 0. ... ', 'The slope of any horizontal line is zero, 0.']
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A horizontal line has slope zero since it does not rise vertically (i.e. y1 − y2 = 0), while a vertical line has undefined slope since it does not run horizontally (i.e. x1 − x2 = 0). ... Vertical lines are not functions; they do not pass the vertical line test at the point x = a.
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['Since the value of m is unknown, the first step is to calculate the slope of the line. ... ', 'Choose (x1, y1) = (–2, –5) and (x2, y2) = (6, 1).', 'By substituting the value obtained in the slope-intercept form, you get the equation:', 'STEP 4: The value of b is still unknown. ... ', 'STEP 5: Now, solve the equation for b.']