On Friday, we corrected a few questions based on Exercise 2: Graphs of Quadratic Functions 1, questions number 11 and 12.
11.)
x = cost of an ice cream cone
J (x - 24)
K (x - 2)
(x- 24) + (x - 2) < x
2x - 26 < x
x - 26 < 0
24 < x < 26
x = 25
12.)
x = 751m
cos(55) = x / 751
cos(55)*751 = x
430.75m = x
* Another thing we did was make a table.
ex. y = x2 : its vertex, Domain, Range
and the Axis of Symmetry
* y = a (x - h) 2
* 2 means squared
vertex ( h , 0 )
Again, I'm so sorry for the late post. I left class a little early, but I heard that we have to do Exercise 3, question 1. Next scribe is Dylan.
