14111cn1.1-5

# 14111cn1.1-5 - c Kendra Kilmer August 18, 2011 Section 1.3...

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c ± Kendra Kilmer August 18, 2011 Section 1.3 - Linear Functions and Math Models Example 1: Questions we’d like to answer: 1. What is the slope of the line? 2. What is the equation of the line? 3. What is the y -intercept? 4. What is the x -intercept? Deﬁnition: If ( x 1 , y 1 ) and ( x 2 , y 2 ) are two distinct points on a line L , then the slope ( m ) of L is (i.e. the rate of change of y with respect to x ) Answer to Question 1: 1

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c ± Kendra Kilmer August 18, 2011 Deﬁnition: (Point-Slope Form) The equation of the line that passes through the point ( x 1 , y 1 ) and has slope m is given by: Deﬁnition (Slope-Intercept Form) The equation of the line that has slope m and intersects the y -axis at the point ( 0 , b ) is given by: Answer to Question 2: Answer to Question 3: Answer to Question 4: Equations of Special Lines: Horizontal Line: Vertical Line: 2
c ± Kendra Kilmer August 18, 2011 Deﬁnition: A function is a rule that assigns to each value of x one and only one value of y . We refer to

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## This note was uploaded on 03/27/2012 for the course MATH 141 taught by Professor Jillzarestky during the Fall '08 term at Texas A&M.

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14111cn1.1-5 - c Kendra Kilmer August 18, 2011 Section 1.3...

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