Is this a function [1,-5) (2,-4) (1,-4)]

No, it is not a function because 1 has 2 outputs. For example two X values, 3 & 4, can have the same value for Y, (3,2) & (4,2) but the X value can only have one Y values

{(1,-5) (2,-4) (1,-4)} Not a function

{(1,-5) (2,-4) (3,-5)} Is a function

725 parts per hour.

step-by-step explanation:

hi there, this answer is actually really simple.

you can set it up as 1450/2 or 3625/5 to find the answer.

they want to know how much per hour is being made, so you just divide.

1450/2=725.

and that's how many are produced per hour.

hope this . : )

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.