I need help ?? Please

The grids have no numeric values, I'll assume values of 1,2,3, etc.

Answers below

Step-by-step explanation:

The Domain of a Function

Is the set of values the input variable x takes.

Range of a Function

It's the set of values the function takes when x moves into the function's domain.

A function is a relation between an input and an output set of values with the condition that every element in the domain relates only with one element in the range.

Question 4.

The input set is {-3,-2,-1,0,1,2}.

Every element of the input set is related to element(s) in the output set, thus the domain is: {-3,-2,-1,0,1,2}.

The output set is {-2,0,2,4}

Every element of the output set is related to element(s) in the input set, thus the range is: {-2,0,2,4}.

Since each element in the domain relates to only one element in the range, this is a function.

Question 5:

Domain: {-3,-1,1,23}

Range: {-3,-1,0,2,3}

The input element -1 is related to elements -1 and 2. Thus this is NOT a function.

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.