Category: Math 10

This week we learned how to solve systems which is pretty neat, I find it interesting that as long as there is 1 variable per equation you can solve it no matter how many are in 1 individual you do this by either using substitution or elimination. My favourite is substitution because it makes more sense to me, the way you do it is by writing one of the variables as an equation of the other and plugging it in so that there is only 1 different variable across one half so then you could solve it using algebra.

https://www.desmos.com/calculator/6bcoclnxms

 

This week in math we learned the differences between functions and relations which is pretty easy to understand but important all the same.  The difference between functions and relations are that function are in a graph where there is never a point on the line that is directly above another and relations do have these points directly on top of each other.

For me, since I was away on the thursday of week 10 when we learned ugly trinomials, the review we did on tuesday was the most important thing I learned this week. It was the most important thing I learned because I was always wondering how to factor trinomials with a coefficient since we started on factoring with the straight up x^2 at the front and I was confused about how we would do the ones with a coefficient, how you do them is by multiplying the coefficient with the constant and then finding the perfect factors with that number and the middle point, and then you put them in a box and find the GCFs of all the pairs and you then have your answer.

 

This week I feel like the coolest thing we learned is how direction relates to trigonometry or finding bearings Because since its on a compass you can make a right triangle out of how far that you have gone in a certain direction. I feel like this is cool because commonly we dont learn where things actually apply in real life but with trig and bearings we did

This week the most important thing we learned was SOH CAH TOA which is a acronym For Sine o/h, cosine a/h, and tangent o/a these are basic trigonometry functions that show the relationships between triangles angles and sides. My mom also knew what soh cah toa was so thats pretty cool too.

this week I learned the volume of a Sphere which is pretty cool because I never learned it before, although it was pretty easy it was still fun to do v of a sphere equals 4/3pi.r^3 which isn’t hard because you literally just follow the formula

This week the thing that I felt was the most important that I learned was conversion from metric to imperial, I feel like this is important because I am going to have to use it frequently because a lot of things here are typically said in imperial so If I wanna know how to find that out in metric this is useful. to convert you put the number you’re dealing with over 1 and then multiply it by the exchange rate, you then might have to put another exchange rate after it and multiply by that as well.