The equation $$3 x + 6 y + 3 =0$$ has the $x$-intercept and the $y$-intercept .
It defines a straight line of slope
The line defined by the equation $$7.5 x + 8.3 y + 5.1 =0$$ has the $x$-intercept and the $y$-intercept .
Its slope is
The line defined by the equation $$-3.2 x + 7.4 y - 4.6 =0$$ has the $x$-intercept and the $y$-intercept .
Its slope is