Hey. So today's lesson was building on what we learned yesterday... Functions.
A function f from a set A to a set B is a relation that assigns to each element x in the set A exactly one element y in the set B. The set A is the domain (or set of inputs) of the functions f, and the set B contains the range (or set of outputs)
Functions are represented in 4 ways
1) Verbally by a sentence that describes how the input variable is related to the output value
2) Numerically by a table or a list of ordered pairs that matches input values with output values
3) Graphically by points on a graph in a coordinate plane in which the input values are represented by horizontal axis and the output values are represented by the vertical axis
4) Algebraically by an equation in two variables
X represents the independent variable and Y represents the dependent value.
There was homework D: but it wasnt soooo bad :D
it was section 1.1 #57-69 odd, 79, 81, 87-90, 91(b-d), 94, 103-105
section 1.2 #1-17 odd
Hope this helped :D
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