Write the equation of the question.

The equation of the line with slope 1/3 and y-intercept as -1 is y = x/3-1 in slope-intercept form.
According to the question,
We have the following information:
Slope of the line = 1/3
We know that the slope of the line is denoted by m.
y-intercept of the line = -1
We know that the y-intercept is denoted by b.
We have the following equation for the line in slope-intercept form:
y = mx+b
Putting the above values in this equation:
y = x/3-1
Hence, the equation of the line with slope 1/3 and y-intercept as -1 is y = x/3-1 in slope-intercept form.
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