Question

Just need help with 2 and 4 :)

Answer 1

2.)

0 = 6x + 3y +9
-3y = 6x + 3y - 3y +9

$\frac{ - 3y}{ - 3} = \frac{6x + 9}{ - 3} \\ \\ y = - 2x - 3$
By isolating y we now have the equation in slope intercept form:
$y = mx + b$

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.