5 1 1 This table shows some Northwest Coast artists and their cultural heritage Artist Bob Dempsey Dorothy Grant Bill Helin John Joseph Judith P Morgan Bill Reid Susan Point Heritage Tlingit Haida Tsimshian Squamish Gitxsan Haida Salish a Describe the relation in words b Represent this relation i as a set of ordered pairs ii as an arrow diagram 2 Here is a list of some chemical elements and their atomic numbers hydrogen 1 oxygen 8 iron 26 chlorine 17 carbon 6 silver 47 For each association below use these data to represent a relation in different ways a has an atomic number of b is the atomic number of 5 2 3 Which sets of ordered pairs represent functions What strategies did you use to find out a 4 3 4 2 4 1 4 0 b 2 4 2 4 3 9 3 9 c 2 8 3 12 4 16 5 20 d 5 5 5 5 5 5 5 5 4 Write in function notation a y 4x 9 c D 20t 150 b C 12n 75 d P 4s 5 The function P n 5n 300 describes the profit P dollars for a school dance when n students attend a Write the function as an equation in 2 variables b Identify the independent variable and the dependent variable Justify your choices c Determine the value of P 150 What does this number represent d Determine the value of n when P n 700 What does this number represent 5 3 6 a Laura cycles home from school then walks back to school Which graph best matches this situation Explain your choice Graph A Graph B Distance to Laura s Distance to Laura s Volume L 2 0 3 15 asnoy 1 0 asnoy 0 Time 0 5 Graph C Time 1980 Distance to Laura s b Choose one of the graphs in part a that did not describe Laura s journey Describe a possible situation for the graph Distance to Laura s 7 This graph shows the volume of water in Liam s flask as he hikes the Trans Canada trail Water in Liam s Flask Distance km asnoy asnou Time 12 16 20 Graph D Time a Describe what is happening for each line segment of the graph b How many time did Liam fill hic flack