Line ab contains points a (3, −2) and b (1, 8). the slope of line ab is


Asked by maham237 @ in Mathematics viewed by 422 People

Answered by maham237 @



The slope of a line is  \frac{y_2 - y_1}{x_2 - x_1} . We have the points (3, -2) and (1, 8). Let's substitute those into the formula.
 \frac{8 - (-2)}{1-3}
subtracting a negative is the same as adding, so that makes our equation
 \frac{8+2}{1-3}
 \frac{10}{-2}
slope = -5

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