What is the equation of this line of best fit in slope-intercept form?
A. y = -1/2x + 8

B. y = −2x + 8

C. y = −8x + 1/2

D. y = −8x + 2

the answer is idk because I actually don’t know

Step-by-step explanation:

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

because that’s us why