Question
Determine whether the three points are collinear by using slopes.$$(-1,-3),(-5,12),(1,-11)$$
Step 1
The formula for the slope is given by $m = \frac{y_2 - y_1}{x_2 - x_1}$. Substituting the coordinates of the first two points into the formula, we get $m = \frac{12 - (-3)}{-5 - (-1)} = \frac{15}{-4}$. Show more…
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