(x,-4) and (2,8) m=-3 find the missing value

It looks like you're given a question in slope intercept form.

Which is: y = mx + b, (m = slope and b = y-intercept)

Plug M and the point you know into the equation.

y = mx + b

8 = -3(2) + b

8 = -6 + b

14 = b

Now that you have your y-intercept, add that to the equation along with m, and what you know of the missing value (the point x, -4, you have the value of y, which is -4, so you're looking for the value of x)

-4 = -3x + 14

-18 = -3x

6 = x

So, your missing value is 6. I hope this was helpful and have a grreat rest of your day! ~ Saturns <3

1/5x+9 2/5y+7

step-by-step explanation: