Question

mw 8:30 spring 2026
work: mml 1.1 functions and models
work
question 12, 1.1.23
hw score: 44%, 8.8 of 2
points: 0 of 1
which of the following arrow diagrams defines a function?
which arrow diagrams define a function?
a. (a)
b. (a) and (b)
c. (b)
d. neither arrow diagram defines a function.

Explanation:

Step1: Recall function definition

A function maps each domain element to exactly one range element.

Step2: Analyze diagram (a)

Domain element 7 maps to two range values (18, 9). This violates the function definition.

Step3: Analyze diagram (b)

Domain element 17 maps to two range values (7, 8). This violates the function definition.

Answer:

D. Neither arrow diagram defines a function.