Hi, can you help me with that please ‘cause I don’t understand what I have to do .

This is a simple question.
The run is related to the x-axis and the rise to the y-axis and the slope is the relation between the two and we can calculate in the following form:
[tex]Slope=\frac{Rise}{Run}=\frac{y_2-y_1_{}}{x_2-x_1}[/tex]To do so, we need to choose 2 different points in the line and calculate. For our explanation, we will choose points (-1,9) and (3,-3). So let's calculate:
[tex]Slope=\frac{Rise}{Run}=\frac{y_2-y_1}{x_2-x_1}=\frac{9-(-3)}{-1-3}=\frac{12}{-4}=-\frac{12}{4}[/tex]And that is our Slope.
Now we can draw it as follows:
And that is our final answer.