The gradient of a line can be calculated using the formula

where

and

are two points that the line passes through
5/15 is the answer simplified is 1/3
Answer:
We are given an expression and we are told to simplify it using distribution or multiplying it out.



Therefore, our final answer is 
<u><em>Hope this helps!</em></u>
Answer:
y = 1/7x + 88/7
Step-by-step explanation:
y = mx +b
since it is perpendicular you have to get the negative reciprocal of the slope which is 1/7
y = 1/7x + b then you would plug in your points
12 = 1/7(-4) + b and then solve for b
12 = -4/7 + b
+ 4/7
88/7 = b
y = 1/7x + 88/7
7/8 x = 21
7x = 21×8
7x = 168
x = 24