Is this the graph of a reciprocal function of a linear or a quadratic function? Explain how you know. -3 -2 4 x

Write an equation for the function graphed below -7 -6 -5 -4 y = 5 4 3 -3 i to w -4 -5. 4 5 6 Q

The cost for 4 hours of parking is $4. The maximum charge for parking is $18. 6. Suzanne has a $30 credit on an online music site. For each MP3 she downloads, $1 is subtracted from her credit. The function y of credit remaining after x downloads. 30 - x models the amount |31 Which statement is true? A The function is discrete because the independent variable, MP3S, can only 8. be measured in whole numbers. The function is discrete because the independent variable, dollars, must be positive. C The function is continuous because the independent variable, money, is measurable and continuous. D The function is continuous because the dependent variable, MP3S, must be positive.

Which function is represented by the graph below? 3+ 24 44 --24 --3-