Hello !, what you have to do is draw the axis X and Y, then you have to draw a table in where you have to give values to X and see that values take Y when you replace X with that values. por example:
X |
Y |
0 |
Y = -3*(0) + 1 wich is Y = 1 |
1 |
Y = -3*(1) + 1 wich is Y = -2 |
-1 |
Y = -3*(-1) + 1 wich is Y = 4 |
2 |
Y = -3*(2) + 1 wich is Y = -5 |
Now what u have to do is draw that points in you axis , in X = 0 u have to move to Y = 1 and so u will obtain a group of points in your paper, what u have to do now is to draw a line that intersect all that points and ur done.