Chapter 01- Introduction to functions.
● Relations- a set of ordered pairs.
Example of a relation:
{ (1, 2), (2, 4), (3, 6) }
● Functions- a relation where each x-value corresponds with one y-value.
property Linear quadratic circle
equation y= mx+c ax² + bx + c = y x² + y² = r²
Ax + By + C = y
shape Straight line Parabola- “U” Circle
shhape.
sketch
How to Identify a Function
-You can identify if a relation is a function in 3 ways:
a. Graphical Representation
● Use the Vertical Line Test (VLT):
→ If any vertical line cuts the graph more than once, it’s not a function.
b. Algebraic Representation
● Relations- a set of ordered pairs.
Example of a relation:
{ (1, 2), (2, 4), (3, 6) }
● Functions- a relation where each x-value corresponds with one y-value.
property Linear quadratic circle
equation y= mx+c ax² + bx + c = y x² + y² = r²
Ax + By + C = y
shape Straight line Parabola- “U” Circle
shhape.
sketch
How to Identify a Function
-You can identify if a relation is a function in 3 ways:
a. Graphical Representation
● Use the Vertical Line Test (VLT):
→ If any vertical line cuts the graph more than once, it’s not a function.
b. Algebraic Representation
