Can a kind soul pleaseee help me??? Consider the line y = 4x + 9. If a *second* line is perpendicular to this one, what is its slope?

please show how you got it so I can see if the answer makes sense

Alarge rectangle is divided into four smaller rectangles.

5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1

This is about circle theorems. someone asap : (