FIND THE SLOPE of the line that passes through the points (1,-19) and (-2,-7). You do not need to write the whole equation

-4

Step-by-step explanation:

(-19 + 7)/(1 + 2) = -12/3 = -4

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

i dont know

step-by-step explanation: