Step-by-step explanation:
Given that the formula of gradient is :
![m = \frac{y2 - y1}{x2 - x1}](https://tex.z-dn.net/?f=m%20%3D%20%20%5Cfrac%7By2%20-%20y1%7D%7Bx2%20-%20x1%7D%20)
So you have to try for every coordinates :
Option A,
![\frac{6-(-2)}{-1-4} = - \frac{8}{5} (incorrect)](https://tex.z-dn.net/?f=%20%5Cfrac%7B6-%28-2%29%7D%7B-1-4%7D%20%3D%20-%20%5Cfrac%7B8%7D%7B5%7D%20%28incorrect%29%20)
Option B,
![\frac{8-(-2)}{-1-4} = -2 (correct)](https://tex.z-dn.net/?f=%20%5Cfrac%7B8-%28-2%29%7D%7B-1-4%7D%20%3D%20-2%20%28correct%29%20)
Option C,
![\frac{10-(-2)}{-1-4} = - \frac{12}{5} (incorrect)](https://tex.z-dn.net/?f=%20%5Cfrac%7B10-%28-2%29%7D%7B-1-4%7D%20%3D%20-%20%5Cfrac%7B12%7D%7B5%7D%20%28incorrect%29%20)
Option D,
![\frac{12-(-2)}{-1-4} = - \frac{14}{5} (incorrect)](https://tex.z-dn.net/?f=%20%5Cfrac%7B12-%28-2%29%7D%7B-1-4%7D%20%3D%20-%20%5Cfrac%7B14%7D%7B5%7D%20%28incorrect%29%20)
Answer:
At 15 movies, both will cost $175
Step-by-step explanation:
Set it up algebraicly. Let x be the number of movies
100 + 5x = 25 + 10x
75 + 5x = 10x
75 = 5x
x = 15
Lets substitute x into one equation
100 + 5(15)
100+75
175
Answer:
the slide 2 times and the hamster balls 1
Step-by-step explanation:
5×1=5 2×2=4 4+5=9
Answer:
x=64
Step-by-step explanation:
you have to divide both sides by two to isolate the variable.
Answer:
The first one is 0.01667 and the second one is 0.37037
Step-by-step explanation: