Asked by jrjty
Which description is represented by a discrete graph?
Kiley bought a platter for $19 and several matching bowls that were $8 each. What is the total cost before tax?
The temperature at 9 a.m. was 83° F and is heating up at an average rate of 6°F per hour. What is the temperature x hours later?
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The first description (Kiley's total cost) is represented by a discrete graph.
Reason: Kiley's total C as a function of the number of bowls n is C(n) = 19 + 8n, and n must be a whole number (0,1,2,…), so the graph is points at integer n (discrete). The temperature T(x) = 83 + 6x is defined for any real x (time), so it is continuous.
Reason: Kiley's total C as a function of the number of bowls n is C(n) = 19 + 8n, and n must be a whole number (0,1,2,…), so the graph is points at integer n (discrete). The temperature T(x) = 83 + 6x is defined for any real x (time), so it is continuous.
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