Answer:
55.55% decrease
Step-by-step explanation:
![change\% = \frac{final \: point \: - initial \: point}{initial \: point \: value} \times 100](https://tex.z-dn.net/?f=change%5C%25%20%3D%20%20%5Cfrac%7Bfinal%20%5C%3A%20point%20%5C%3A%20%20-%20initial%20%5C%3A%20point%7D%7Binitial%20%5C%3A%20point%20%5C%3A%20value%7D%20%20%5Ctimes%20100)
In the question ,
Initial point value = 9
Final point value = 4
Change% = ![\frac{4 - 9}{9} \times 100 = \frac{ - 5}{9} \times 100 = - 55.55\%](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%20-%209%7D%7B9%7D%20%20%5Ctimes%20100%20%3D%20%20%5Cfrac%7B%20-%205%7D%7B9%7D%20%5Ctimes%20100%20%3D%20%20-%2055.55%5C%25)
-1 1, -2 2, 3 -3. Is this what you wanted? If no tell me in comments and maybe a can help fix.
Scalene triangle,,,,,,,, a triangle that no side is equivalent to to another
Step-by-step explanation:
Use formula to find the slope/gradient
![\frac{y2 - y1}{x2 - x1}](https://tex.z-dn.net/?f=%20%5Cfrac%7By2%20-%20y1%7D%7Bx2%20-%20x1%7D%20)
(-5, -1) = (x1, y1)
(5, 11) = (x2, y2)
So,
![= \frac{11 - ( - 1)}{5 - ( - 5)} \\ = \frac{12}{10 } \\ = \frac{6}{5}](https://tex.z-dn.net/?f=%20%3D%20%20%5Cfrac%7B11%20-%20%28%20-%201%29%7D%7B5%20-%20%28%20-%205%29%7D%20%20%5C%5C%20%20%3D%20%20%5Cfrac%7B12%7D%7B10%20%7D%20%20%5C%5C%20%20%3D%20%20%5Cfrac%7B6%7D%7B5%7D%20)