Question

which is an example of deductive reasoning?
○ ali notices that a plant grows 2 inches each week. nikki has a plant, so it must grow 2 inches each week.
○ bruce asks his friends what kind of music they like best. they all say rock, so everyone in the world likes rock music best.
○ all even numbers are divisible by 2. the number 18 is even, so it is divisible by 2.

Explanation:

Deductive reasoning uses a general rule to reach a specific conclusion.

• First option: Assumes one plant's growth applies to all, which is inductive (generalizing from one case).
• Second option: Generalizes from friends' preferences to everyone, inductive.
• Third option: Starts with a general rule (all even numbers divisible by 2) and applies it to a specific even number (18) to conclude it's divisible by 2, which is deductive.

Answer:

C. All even numbers are divisible by 2. The number 18 is even, so it is divisible by 2.