The equation for a graph is y=mx+b, with m being the slope
In the given equation, -0.25 is the slope of the given line
This can also be written as -[tex] \frac{1}{4} [/tex]
To find a perpendicular graph, you find the reciprocal of the slope
To do this, you switch the numerator and the denominator
Your final answer will be:
-[tex] \frac{4}{1} [/tex] which simplifies to -4
