Question

Which of the following statements about functions is incorrect?
A.
The domain is always all real numbers.
B.
Each x-value corresponds to only one y-value.
C.
The range of a function is all the y-values output by the function.
D.
The same y-value can correspond to more than one x-value.

please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

A

Answer 2

The domain doesnt have to be all real numbers

Answer 3

There an be holes in the domain, or there can be complex numbers

Answer 4

or the domain can only be part of the x coordinates

Answer 5

hey well help me on this one

Ryan buys 3 heads of garlic at $0.50 per head. He also buys 2 pounds of zucchini. If he spends $4.10 on the vegetables, how much did the zucchini cost per pound?

Answer 6

Okay soo

Answer 7

thats kinda straight forward, whats confusing you

Answer 8

is the answer $1.30

Answer 9

show me what you did

Answer 10

you can work backwards to check if its right too

Answer 11

if 1 pound is 1.30 then
2 pounds are 2.60
so
total = 3*(0.5)+2.60 = 4.10 which is right so your assumption of 1.30 is right