I have problems with my multiplication tables too. Is it very important?

]]>j = 1

REPEAT

ans = j*5

PRINT j;" x 5 = ";ans

j = j + 1

UNTIL j = 11

NEXT i

Bob

]]>Then I read the question properly (why don't I do this first???) and revised my answer. In my annoyance I thought 6 and 3/5 ... 6 5s are 35 add 3 makes 38. So a/b = 38/5. Big whoops. I realised that must be wrong because that wasn't what my diagram was telling me, but it took ages to get the edit screen to work so I could do 6 5s are 30 add 3. Pathetic excuse but there it is. I've admitted to the forum that I cannot do my five times table. I'll write it out 20 times.

Bob

ps. Load speed back to normal now.

]]>Yes, I got the idea Thanks a million

But I would be happier if you clarified it to be 33/5

]]>I have edited my hidden answer. Hopefully, you'll like the correction better.

The distance (3,5) to (1,y) and the distance (-1,5) to 1,y) are the same by the properties of reflection.

So minimise by drawing a straight line from (-1,5) to (4,9)

I am finding the site very slow at the moment ... not sure if this is general or not. It took 10 mins to make my last post, edit it and then correct the edit.

Hope what I have said is clear.

Bob

]]>But:

1. That is not the answer

2. How do I know that that is the shortest distance?]]>

Reflect (3,5) in the line x=1 to give (-1,5)

Join this point to (4,9) to give the minimum distance.

EDIT: and the ratio is easily found by counting coordinate squares.

Bob

]]>I don't know much about it]]>

The CAS didn't help me much. I haven't got a clue about equating that to 0 (by hand)

]]>If you can do it using a CAS that is okay too.

]]>Actually, I am not fully acquinted with Calculus.

Is your brother on this forum?

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