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-10287006794500Example 1: Karly is driving to Montreal at 60 km/h.Fill in the table of values below to show her distance about 1 h, 2 h,… 10 h. Graph the relationship. Be sure to label the independent and dependent variable.331470012319000Is the relationship linear or non-linear? Where does it cross the y-axis?Write an equation to find the distance she travelled, d, after t hours. Use the equation to determine how far she could travel in 15 hours.-4857751450340The relationship above is an example of _____________________________ Another way to say this is ______________________________________________________00The relationship above is an example of _____________________________ Another way to say this is ______________________________________________________-276225-457200In general: Direct VariationDirect variation occurs when the ratio of the variables does not change. Or in other words, when the dependent variable is a constant multiple of the independent variable. Direct variation can be defined algebraically as or m is the ______________ or _________________________________ the graph passes through the _______________ 00In general: Direct VariationDirect variation occurs when the ratio of the variables does not change. Or in other words, when the dependent variable is a constant multiple of the independent variable. Direct variation can be defined algebraically as or m is the ______________ or _________________________________ the graph passes through the _______________ Example 2: Find the slope/constant of variation (m):The distance travelled by a car varies directly with time. The car travels 270 km in 3 h.The total cost varies directly with the number of games bought. 8 games cost $480.-114300016827500Example 3: Chris works part-time at Lick’s and earns $7.50/hDescribe the relationship between his pay and the hours he works. Write an equation for the relationship. What is the slope/constant of variation?If he makes $78.75 in a week, how many hours did he work?Homework: pg. 242 #C1, C2, 1-3, 6, 8, 10, 13, 14 TIPS Practice 17Note: book uses k instead of m for constant of variation/slope! ................
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