May 29

Math 10 Week #15

this is the formula for calculating a slope

here we have random coordinates that I picked out and what you do is you put in the coordinates Y with Y and X with X you could put it as Y1 and Y2 or Y2 and Y1 but the Xs have to correspond with that too. Now that you have your coordinates in place you just continue with the formula giving you -1 over -3 or simply 1 over 3 because a negative division equals to a positive,

May 29

Math 10 Week #14

this is an easy function notation, what it means is basically function of the X coordinate or simply Y

the way it is done is you take the function of 3 in our situation and you put it in place of X which was before the four and you follow the equation to get the answer that the function of 3 or Y=19

May 18

Math 10 Week #13

this is how to represent a set notation from a graph, I will be showing you domain and range.

first we’ll start with domain and domain uses the x axis, with our graph our line starts at 1 on the x axis and ends at 8 and everything between there is x, not 1 and 8 because the circles are open where the numbers are, giving us domain equaling 1<x<8. moving onto the range being the y axis it starts at 2 and ends at 5 and x being everything in between but not 2 and 5 because again the circles are open which means you don’t include them in x making the range equal to 2<x<5

May 18

Math 10 Week #12

This is how you figure out an equation to go along with a table of values chart

first you take the difference between the output number and if it’s negative then you put negative and the number along with x but in our case it’s positive 3x then you add or subtract the difference between the result of 3x, x being the input number then you’d get +17 in our case and you’d check to see if the equation works with all 3 or 4 numbers you have and it should.

May 18

Math 10 Week #11

what we have here is an “ugly” trinomial, it’s basically a normal trinomial but you have to do a little extra work because of the leading coefficient being greater than 1

since the leading coefficient can relate to the other two numbers in the equation (9 and 30) they can be reduced to 3 and 10 because of division leaving us with x4+3×2+10 so then what we did was we just took the lead coefficient out and left us with a simple trinomial to factor so once you factor the trinomial as I did there you are left with the 3 which you put on the left outside of the brackets. If the coefficient didn’t relate with the other 2 numbers it would go to the left but inside the bracket