1. 2.1 Relations and Functions

2. Target Goals: 1. 2. 3. Identify the domain and range. Identify if a relation is a function. Evaluate functions NEW VOCABULARY – Please try to choose the correct word from the box to complete each sentence. domain function mapping range relation quadrants 1. A ___ ___ ___ ___ ___ ___ ___ ___ is a set of ordered pairs. 2. The ___ ___ ___ ___ ___ ___ of a relation is the set of all the first coordinates (x-coordinates) from the ordered pairs. 3.The __ __ __ __ __ is the set of all the second coordinates (y- coord) 4.In a coordinate plane, the x-axis and the y-axis meet at the origin (0,0) and divide the plane into four __ __ __ __ __ __ __ __ __. 5.A __ __ __ __ __ __ __ illustrates how each element of the domain is paired with an element in the range. 6.A __ __ __ __ __ __ __ __ is a relation in which each element of the domain is paired with exactly one element of the range.

3. Y-INTERCEPT  X-INTERCEPT  The point of intersection of the line and the y axis. (x=0) The point of intersection of the line and the x axis. (y=0) Find the x-intercept and the y-intercept of the graph of the linear equation. Then graph the equation.