Explanation:
Remember that the slope of a line is define by the change in y divided by the change in x. In other words:
[tex]m=\frac{Change \ in \ y}{Change \ in \ x}[/tex]
We can calculate the slope of any line using two points, so:
[tex]m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
From the graph, we know two points:
[tex](x_{1},y_{1})=(0.7) \\ \\ (x_{2},y_{2})=(3.5,0)[/tex]
Therefore, the slope is:
[tex]m=\frac{0-7}{3.5-0}=-2[/tex]
Therefore, the correct option is:
d) slope= -2
