Yes, this particular one is a function because the inputs hace exactly one output.
Answer:
triangle abc = acb
Step-by-step explanation:
ist right answer of this test
9a-ab+5b
9(2)-(2)(7)+5(7)
18-14+35
39

The sign at the end changes because both sides of the equation are being divided by a negative number.
Answer:
A
Step-by-step explanation: