Problem Solving: No Idea Where to Start? Hints Here

[Yazan975]

View attachment 8417

No idea where to start.
Any hints?

 

[Wilmer]

No idea where to start.

WHY were you given the problem then?

Did you miss math classes?

 

[Yazan975]

WHY were you given the problem then?

Did you miss math classes?

It is supposed to test us

 

[Wilmer]

It is supposed to test us

I had a look at your 1st post; you do not seem ready for this...

 

[HOI]

Perhaps the purpose is to test whether you can recognize non-sense when you see it! The problem refers to two lines, $l_1$ and $l_2$, tells us that $l_1$ is given by px+ py+ r= 0 but nothing at all is said about $l_2$. And the problem asks for the distance from the origin to point M but what in the world is M?

Are we to assume that $l_2$ is the line through the origin perpendicular to $l_2$ and M is the point or intersection? In that case the given solution is correct but why aren't we told that?