Step-by-step explanation:
eqn of line : y = mx+ c
m = slope or gradient
c = y-intercept.
Lets take (1,6) = (x1,y1) and (2,3) = (x2,y2)
![m \: = \frac{y1 - y2}{x1 - x2} \\ = \frac{6 - 3}{1 - 2} \\ = \frac{3}{ - 1} \\ = - 3](https://tex.z-dn.net/?f=m%20%5C%3A%20%20%3D%20%20%5Cfrac%7By1%20-%20y2%7D%7Bx1%20-%20x2%7D%20%20%5C%5C%20%20%3D%20%20%5Cfrac%7B6%20-%203%7D%7B1%20-%202%7D%20%20%5C%5C%20%3D%20%20%5Cfrac%7B3%7D%7B%20-%201%7D%20%20%5C%5C%20%20%3D%20%20-%203)
Substitute x = 1 and y = 6 into equation,
![6 = ( - 3)(1) + c \\ 6 = - 3 + c \\ c = 6 + 3 \\ = 9](https://tex.z-dn.net/?f=6%20%3D%20%28%20-%203%29%281%29%20%2B%20c%20%5C%5C%206%20%3D%20%20-%203%20%2B%20c%20%5C%5C%20c%20%3D%206%20%2B%203%20%5C%5C%20%20%3D%209)
Therefore substituting m and c value, equation of line is
![y = - 3x + 9](https://tex.z-dn.net/?f=y%20%3D%20%20-%203x%20%2B%209)
Answer:
Step-by-step explanation:
1+2
+2v+4
How do you become an administrator?
I think answering a lot of questions and dont get warnings
Answer:
It is D
Step-by-step explanation:
Distribute:
=(4)(5m)+(4)(3)+2m
=20m+12+2m
Combine Like Terms:
=20m+12+2m
=(20m+2m)+(12)
=22m+12
Answer:
I would say C
Step-by-step explanation:
because I think that 15 is the slope and the 35 is the y intercept. I could be wrong but that would be my guess