What is the right choice for question 18) ? http://postimg.org/image/ivhw1vc5t/
The y intercept of a straight line is simply where the line crosses the y axis.
The slope intercept form (y=mx+c) of the given equation `x+3y=-3` is
`y=-1/3x-1` where c=-1 is the y intercept of the equation .
Therefore, the y intercept of the equation is -1.
Hence, the right choice is option d).