The correct options are:
- total cost, c, of buying g pounds of broccoli.
- speed of a car, s, as it accelerates over time, t.
- total distance, d, that has been driven over time, t
- decrease in outside temperature, F, one evening over time, t.
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This question is solved classifying the input variables as discrete or continuous.
- Discrete variable: Also know as countable, cannot be represented by decimal numbers.
- Continuous variable: Can be represented by decimal numbers.
If the input variable is continuous, a continuous graph is used.
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- total cost, c, of buying b cans of beans
Cans of beans is the input, and the number of cans is a countable number, that is, 0, 1, 2, ..., so a discrete graph is used, and the option is not checked.
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- total cost, c, of buying g pounds of broccoli
Pounds can assume decimal values, so it is a continuous variable, and a continuous graph is used, and this option is checked.
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- speed of a car, s, as it accelerates over time, t
- total distance, d, that has been driven over time, t
- decrease in outside temperature, F, one evening over time, t
Time can assume decimal values, like 0.5 seconds, 0.5 hours, so it is a continuous variable, and a continuous graph is used, and these options is checked.
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- number of stamps, s, needed to mail p postcards
The number of postcards is the input, and the number of postcards is a countable number, that is, 0, 1, 2, ..., so a discrete graph is used, and the option is not checked.
A similar example is found at https://brainly.com/question/14773062
