I am such a nerd!!

jnthwaite · January 2012

As you may or may not know, I'm a high school math and science teacher. I decided at my current rate of weight loss, I wanted to see how long it would take to get to my ideal weight. This is what happened next.

(I got a line of best fit with excel, so I can't take ALL the credit.)

426922_10150532089320003_719885002_9200227_1133749850_n.jpg

426922_10150532089320003_719885002_9200227_1133749850_n.jpg

The line of best fit for my weight loss is y = -0.43x + 92.81

So, if I want to get to my ideal weight of 65kg, I need to substitute y for 65, and solve for x.

65 = -0.43x + 92.81
65 - 92.81 = -0.43x
-27.81 = -0.43x
-27.81/-0.43 = x
x = 64.674418604651162790697674418605

So if my weight loss stays at this rate, then I should be at my ideal rate in 65 weeks. I may give this to my class as an example. Lol.

snakesandladders2 · January 2012

Lol, I love this!

It's a great example to use, you can even ask them what the y-intercept means in this example - it'll give them something to remember what the formula actually means. I used to do some maths teaching and the kids really struggled with the concepts, and just ended up memorising the formulae.

You might never live it down, though!

jnthwaite · January 2012

You might never live it down, though!

I'm already unpopular. I give them homework and *gasp* expect them to do it. :laugh:

charisxena · January 2012

Seems terribly complex o_o. But, good luck anyways!

mdailey93 · January 2012

I had to make one of these in my chemistry class the other day. It was more complicated then it looked! Nice job on it!

richx83 · January 2012

This is great, I find any sort of maths that you can relate to is much easier to understand and stuff i still remember, just all the boring pointless maths that I have forgotten lol

I am such a nerd!!

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