Which table shows a linear function?




What is the slope of the equation ?



The graph of a function must be linear if it has what characteristic?
Which graph represents y = –2x?




Which function is graphed on the coordinate plane below?

Which equation is represented by the graph below?



Tickets for the school play sell for $4 each. Which graph shows the relationship between the number of tickets sold (x) and the total income from the tickets (y)?




Which graph shows a linear function?




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