Interpret Graphs and Equations
Math Models
What are some ways a function can be represented?
Function are commonly represented and interpreted by tables,equations and graphs. Meaning a function can be represented more than just one way.
Interpreting and Expressing a Table
-How the x-values are changing
-How the y-values are changing
-The starting value
-The rate of change
These are what you need to identify when interpreting table values
As the value of x changes so does the y.
-Example: As the value of x increases, the value of y increases.
- The graph is a linear function with a y-intercept of -3 and a slope of 2/2.
Interpreting an Equation
Equations are easily interpreted by looking at the table of values.
Example: This function shows a relationship between x and y.
y=4x+2
Interpreting Graphs
Graphs can be represented by different types of functions:
Interpreting Linear and "Something Else" Graphs
Linear Graphs
-Linear Function Graphs always have a y-intercept and a slope (Rate of Change)Something Else Graphs
-Make sure you pay attention to the labels
-Find the rate of change of each section