What is the slope of the equation ?



The cost to rent skis at a local sporting goods store is $15 plus $20 per day. Which equation models the relationship between the total cost to rent, c, and the length of the rental in days, d?
Which table shows a linear function?




Which equation is represented by the graph below?



The graph of a function must be linear if it has what characteristic?
If f(x) is a linear function, which statement must be true?
Which graph represents y = –2x?




Which graph shows a linear function?




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