1. Today’s Topics: Identify Linear Functions Intercepts/Slopes Graph Linear Functions Rate of Change Identity and Constant Functions Apply Linear Revenue, Cost, and Profit Solving Linear Equations Solve Real-World Application Solve Literal Equations Today’s Topics: Identify Linear Functions Intercepts/Slopes Graph Linear Functions Rate of Change Identity and Constant Functions Apply Linear Revenue, Cost, and Profit Solving Linear Equations Solve Real-World Application Solve Literal Equations

3. Intercepts are points that cross the x-axis and the y-axis. To Find the y-intercept: Let x = 0 and solve for y To Find the x-intercept: Let y = 0 and solve for x Example: Find the x-intercept and y-intercept of the graph 4x-12y =22

6. Find the slope of each: A.(-3, 2) and (5, -4) B.(8, -3) and (7, -4)

7. Match each equation with the possible slope: A.y = 2x + 3 B.y = 5 C.x = 2 D.y = - 2x + 5 Match each equation with the possible slope: A.y = 2x + 3 B.y = 5 C.x = 2 D.y = - 2x + 5

9. Constant FunctionIdentity Function y = b, where b is a real number y = x

11. Apple manufactures a 16GB Wi-Fi-only iPad 3 and sells them for $499. The cost incurred in the production and sale of the iPad are $500,000 * plus $316 ** for each iPad produced and sold. Write the profit function for the production and sale of x iPads. *Yeah….I made this up. ** According to http://www.ijailbreak.com/ipad/how-much-does-new-ipad-cost-to-make

13.  Simplify o Get rid of parenthesis.  Multiply ALL terms by the lowest common denominator.  Continue Simplifying o Combine like terms on either side of the equal sign.  If there is more than one x left, get rid of one of them.  Follow SADMEP  Simplify o Get rid of parenthesis.  Multiply ALL terms by the lowest common denominator.  Continue Simplifying o Combine like terms on either side of the equal sign.  If there is more than one x left, get rid of one of them.  Follow SADMEP

18. 4.3 Due Thursday Quiz Friday In-Class 1.3/2.1(todays) Due Next Tuesday