Question

. The points given in the table lie on a line. Find the slope of the line.

table given:
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x | -1 | 2 | 5 | 8 |
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y | 3 | -1 | -5 | -9 |

Answer 1

-12 / 17

Explanation:

x | -1 | 2 | 5 | 8 |

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y | 3 | -1 | -5 | -9 |

Piking the poits at the extreme:

x1 = - 1 ; y1 = 3

x2 = 8 ; y2 = - 9

Slope = Rise / Run

Rise = y2 - y1 = - 9 - 3 = - 12

Run = x2 - x1 = 8 - (-9) = 8 + 9 = 17

Hence,

Slope = - 12 / 17