Hlp ! which of the following lines is perpendicular to the line y=23x−4? - y=3/2x+1 y−−2x−12 y=2/3x+1/4 y=−3/2x−4

If you meant to write y=23x-4 then none of the lines are perpendicular.

I suspect you intended y=2/3x-4, then line D, y=-3/2x-4 is perpendicular.

For any line y=mx+b, you have to "invert" m to get  a perpendicular line. Inverting in this case means: flip numerator and denominator and add a minus sign.

So 2/3 becomes -3/2, hence answer D.

The 'inverted' m is called the opposite reciprocal. That's your word of the day.

`1234567890-=/*-qwertyuiop[]asdfghjkl; '\\zxcvbnm,./+ /