2.)
0 = 6x + 3y +9
-3y = 6x + 3y - 3y +9
[tex] \frac{ - 3y}{ - 3} = \frac{6x + 9}{ - 3} \\ \\ y = - 2x - 3[/tex]
By isolating y we now have the equation in slope intercept form:
[tex]y = mx + b[/tex]
Where m = slope and b = y- intercept. Therefore, the slope is -2 and the y - intercept is -3.
4.)
Similarly, #4 is already in slope intercept form so we can solve it by inspection. So for #4 the slope is -1 and the y - intercept is 2.
