Respuesta :
we have
the equation of the line is [tex]y=-2x[/tex]
the points are
[tex]A(3,-6)\\B(0,0) \\C(-3,6)[/tex]
Method 1
we know that
A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form [tex]y/x=k[/tex] or [tex]y=kx[/tex]
In this problem we have a direct variation
The constant of proportionality k is equal to the slope of the line
[tex]k=-2[/tex]
so
[tex]m=-2[/tex]
therefore
the answer is
the slope of the line is equal to
[tex]m=-2[/tex]
Method 2
we know that
the formula to calculate the slope between two points is equal to
[tex]m=\frac{y2-y1}{x2-x1}[/tex]
we have
[tex]A(3,-6)\\B(0,0)[/tex]
substitute in the formula
[tex]m=\frac{0+6}{0-3}[/tex]
[tex]m=\frac{6}{-3}[/tex]
[tex]m=-2[/tex]
therefore
the answer is
the slope of the line is equal to
[tex]m=-2[/tex]