Which of the following is the equation of a line that is perpendicular to the graph of y= 2/5x-1? A. y= 2/5x-4
B. y= -5/2x-4
C. y= -2/5x-4
D. y= 5/2x-4

PLEASE HELP!!!

Ithink the answer is: it is likely.

Its d so thats how it would would back from 1.0 form three four two

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.