Explain why y=2x-0.5?

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

one set of data has more variation than the other. hope this !

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.