We'll decide.

We'll decide later.

We'll decide later.

We will decide later.

Let's try 4d.

Let's do it.

Tomorrow we'll see.

We'll work the problem out.

Let's do another one.

Let me do it in that color. We knew x equals 2 3 and on, we're concave upwards. And that's why I was able to draw this U shape.

Let's do another one.

So let's solve the problem.

All right, let's do 3b. Doing every other problem. I'll do it in yellow.

Let's crowdsource this.

So let's do an example.

Let's do another one.

So let's do that.

Let's do one more example.

Let's do another one.

Let's do a slightly smaller example.

Let's do a couple more.

Let's do another one.

Let's start doing some problems.

So let's do a hard problem.

Let's do one more.

Let's do the next one.

When you come back, we all decide!

Let's do a more interesting one.

We'll handle it differently.

Look, lets meet, then we can decide things.

Let's solve this problem together.

Let us address that issue right now.

Let us then deal with that first.

Let's throw democracy at the problem.

So let's get another problem.

Let me do one more example.

Let's do another problem.

Let's do one more problem.

So let's quickly run through an example of this.

There you saw it.

Let's do a couple of more problems.

Let's determine with this.

Let's do one more.

Let's do some more problems.

I could have done this exact same problem that way.