how do you find the slope of a line graph?
208017
Using the Slope Equation 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).
935021
This is the slope of the line (usually called m). If you need to find the equation of the line simply input all of our knowns into the slope/line formula: y-y1=m(x-x1). For the above example that's y-1=1(x-2). Then simplify and you've got y=x-1.
81517
['Look for the y-intercept where the graph crosses the y-axis.', 'Look for the x-intercept where the graph crosses the x-axis.', 'Look for the zeros of the linear function where the y-value is zero.']
680501
There are two methods to calculating the slope of a line in Excel, the first method is to use the gradient formula where slope = (y2-y1)/(x2-x1), while the second method is to make a scatter plot of the data and add a trendline with the equation of the line.
1039557
['Step 1: For each (x,y) point calculate x2 and xy.', 'Step 2: Sum all x, y, x2 and xy, which gives us Σx, Σy, Σx2 and Σxy (Σ means "sum up")', 'Step 3: Calculate Slope m:', 'm = N Σ(xy) − Σx Σy N Σ(x2) − (Σx)2', 'Step 4: Calculate Intercept b:', 'b = Σy − m Σx N.', 'Step 5: Assemble the equation of a line.']
1368641
Use the formula for the slope of a line, m = (y2 - y1)/(x2 - x1), to find the slope. By plugging in the point values, m = (0.5 - 1.25)/(0 - 0.5) = 1.5. So with the y-intercept and the slope, the linear regression equation can be written as y = 1.5x + 0.5.
39552
Finding the Slope Check the box labeled "Display Equation on Chart" and then close the window. Examine the equation for the line, which Excel is now displaying overlaid on the scatter plot. The equation will be in the form of "y = mx + b" where m and b will be numbers. The value of "m" is the slope of the graph.
449291
You've seen that you can find the slope of a line on a graph by measuring the rise and the run. You can also find the slope of a straight line without its graph if you know the coordinates of any two points on that line. Every point has a set of coordinates: an x-value and a y-value, written as an ordered pair (x, y).
507058
To find the slope of an equation given in y=mx+b, balance the equation until y is by itself without any constants. First subtract 8 from both sides to get 4y = 6x + 10. Next, divide the equation by the constant 4 to isolate y, giving you y = 3/2x + 5/2.
357547
To find the slope of a line you must have two points and then you must plug in the two points into the slope formula. The slope formula is m= y2-y1 over x2-x1.
760204
The vertical change between two points is called the rise, and the horizontal change is called the run. The slope equals the rise divided by the run: . You can determine the slope of a line from its graph by looking at the rise and run. One characteristic of a line is that its slope is constant all the way along it.
1289765
['(x1, y1) = (-2,-1)', '(x2, y2) = (4,3)', 'slope = ((y2-y1)/(x2-x1))']
1236133
To find the slope, we will need two points from the line. Pick two x's and solve for each corresponding y: If, say, x = 3, then y = ( 2/3 )(3) - 4 = 2 - 4 = -2. If, say, x = 9, then y = ( 2/3 )(9) - 4 = 6 - 4 = 2.
1361266
['Find the derivative of the function. There are many different ways to do this, depending on the function.', 'Plug the x-value, x 1, of the point into the derivative. This is the slope of the function at the point.']
1171354
['In Cell B1 and C1 type "X" and "Y"', 'Enter Coordinates in Excel : In cell B2 and C2 enter your first coordinates (x and y).', 'In cell B3 and C3 enter your second set of coordinates.', 'Calculate the Slope: In C4 type "=slope(C2:C3,B2:B3)"', 'You have the slope! Advertisement.']
1156272
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.
321287
['y = mx + b.', 'Graph the equation: y = 2x + 4.', 'Slope = 2 or 2/1.', 'Y-intercept = 4 or (0,4)', 'Step 1: Plot the y-intercept on your graph. ... ', 'Step 2: From the y-intercept (0,4) use the slope to plot your next point.', 'The slope is 2, so you will rise 2 (up) and run 1 (to the right).']