What is the slope intercept from the two points (6,-6) and (8,8)

y=7x+1/7

Step-by-step explanation:

Your points (8,8) and (6, -6) can easily be find the slope using (y2-y1) / (x2-x1)

This slope results in 14/2 or 7.

Find the b-value is simple - plug in your 7 into the equation, y=7x+b, then use an existing point on the line to find the b-value. In this case, I used the (8, 8) point.

After plugging in, simply divide to get numbers on the opposite side of variable, and you will end up with 1/7.

The equation turns out to be y=7x+1/7.

isi

step-by-step explanation:

use that smart brain

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18