Draw a line having a slope of 1/3 and y-intercept of - 1

Equation for slope=1/3 and y-intercept=-1 is:

y = mx + b

where m is slope and b is y-intercept.

So, equation becomes

y = - 1x + 1/3

Now put different values of x in the equation to get corresponding value of y.

x y

0 1/3

1 - 2/3

2 - 5/3

3 - 8/3

-1 4/3

-2 7/3

-3 10/3