Answer:
The correct option is D.
Step-by-step explanation:
If a line passing through two points, then the equation of line is
\(y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\)
From the given graph it is clear that the line is passing through the points (-1,2) and (0,-1), so the equation of line is
\(y-2=\frac{-1-2}{0-(-1)}(x-(-1))\)
\(y-2=-3(x+1)\)
\(y-2=-3x-3\)
\(y=-3x-3+2\)
\(y=-3x-1\)
The correct formula for the function is y=-3x-1, therefore the correct option is D.
