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Can anyone help me find the slope??

Can anyone help me find the slope??-example-1

1 Answer

3 votes

Answer:
The slope is -3/4

Step-by-step explanation:
To find the slope of a line, you can use the "rise over run" method where you count how many units from one point to the next the line increases or decreases along the y-axis and place this number in the numerator of a fraction; then, count how many units to the left or right that same point is along the x-axis and place this number in the denominator. Simplify if necessary and that becomes the slope.

So, assuming each tick on the axes is 1 unit, to get from the leftmost point to the rightmost point, we go down 3 units on the y-axis ("rise" -3 units) and to the right 4 units ("run" 4 units). Therefore, the slope is -3/4

The method I like to use the most because it involves the actual math of finding a slope is plugging plotted points into the slope formula. The slope formula is
(Y2 - Y1)/(X2 - X1) where two points along the line (X1, Y1) and (X2, Y2) are used.

Again, assuming, each tick is 1 unit, the plotted points on the line in the image are (-2, 2) and (2, -1). Now, we plug these ordered pairs into the formula and solve:


(Y2 - Y1)/(X2 - X1) = (-1 - 2)/(2 - (-2)) = (-3)/(2 + 2) = (-3)/(4)

Therefore, the slope is -3/4

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