If y varies directly as x, and the constant is -3, what is the equation?

Q1 which of the following is a factor of a)37 b)53 c)62 d)82 q2) if the sum of 2016 different whole numbers is odd. at most how many of the numbers can be even a)0 b)1 c)2014 d)2015

Which function has the same domain as y=2x

The value √10 and √15 are plotted on the number line