Respuesta :
The independent variable is the x-value.
Plug 5 into the equation for x;
-2(5) +1 = -9 (5, -9)
-2(5) -1 = -11 (5, -11)
You left out the sign before the 1 in your problem so you'll have to see which one it is.
Plug 5 into the equation for x;
-2(5) +1 = -9 (5, -9)
-2(5) -1 = -11 (5, -11)
You left out the sign before the 1 in your problem so you'll have to see which one it is.