Question

Can someone help with #2 and #4

Answer 1

2. See below.

4. Domain = {57, 68, 93, 99}

Explanation:

Question 2

Given relation:

`\{ (1,5),(2,3),(3,2),(4,1),(5,0)\}`

The given relation is a set of ordered pairs (x, y), where the first element is x and the second element is y.

To express the given relation as a table, enter the x-value of each ordered pair in the left column, and the corresponding y-value of each ordered pair in the right column:

`\begin{array}c\cline{1-2} x & y\\\cline{1-2}1&5\\\cline{1-2}2&3\\\cline{1-2}3&2\\\cline{1-2}4&1\\\cline{1-2}5&0\\\cline{1-2}\end{array}`

An ordered pair is used to represent the position of a point on the coordinate plane. Therefore, to represent the given relation as a graph, plot each ordered pair on the given coordinate plane.

(See attachment 1).

To represent the given relation as a mapping diagram:

• Place the first element of each ordered pair in the left column entitled "Place".
• Place the second element of each ordered pair in the right column entitled "Points".
• Connect each ordered pair with an arrow from its first element to its second element to represent the relation between them.

(See attachment 2)

Question 4

The domain is the set of all x-coordinates.

Therefore, the domain of the given mapping diagram is {57, 68, 93, 99}.