Answer:
f(x) = -3x + 1/3
Explanation:
By definition, parallel lines have equal slopes.
Therefore, since the given problem states that the unknown line is paralel to "y = -3x," then it means that the unknown line will have the same slope.
The y-coordinate of the y-intercept (0, 1/3) is also given: 1/3. It is the point in the graph where the line crosses the y-axis.
Combined, the linear equation is:
f(x) = -3x + 1/3.