Smart about slopes pls help

Step-by-step explanation:

Slope of a line passing through two points and is given by,

Slope =

8). Slope of the line passing through (0, 4) and (-1, 6) will be,

Slope =

          = -2

9). Slope of a line passing through (10, 15) and (9, 0),

Slope =

          = 15

10). Slope of a line passing through (0, -9) and (4, -7),

Slope =

          =

11). Slope of a line passing through (2, 20) and (4, 17),

Slope =

          =

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.