Sarah walked at a constant speed of 20 blocks per hour. If she walked for 30 minutes how many blocks did she walk?
2 answers:
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Answer:
is one to one mapping, it is not onto mapping
Step-by-step explanation:
f₁(x) is one to one mapping
Let
f₁(x) = f₁(y):
x₁³ = y₁³
f₁(x) is not onto mapping
Example: If f₁(x) = 7,
x₁³ = 7
x₁ is not an element of Z
is one to one mapping, it is not onto mapping