Question

Domain and Range

Answer 1

@mathmate

Answer 2

Domain is a set of all possible x-values, and range is a set of all possible y-values of the function/relation.
A function cannot have different y-values for the same value of x.
To check, draw a vertical line through the graph. If it is not possible for the vertical line to cut two points on the graph, the graph represents a function.

Answer 3

18. Graph O

Answer 4

@mathmate

Answer 5

@zarkam21

Answer 6

18. Graph O is correct.
Assuming each square represents 1 unit, the domain is from -4 to 7, and the range is from -7 to -2. Also the graph is not a function because any vertical line through the graph intersects at two points.
Good job, keep going! :)

Answer 7

17. Graph S

Answer 8

@jim_thompson5910

Answer 9

`17. Graph S`
that is incorrect

Answer 10

In problem 17, it states that the range is from 0 to 7

This means that y can be anything from 0 to 7 (inclusive)

eg: y = 2 is possible

however, look at the graph. Notice how only y = 0 is possible. ALL of the points on graph S have a y coordinate of 0. They all lie on the same horizontal line.

Answer 11

alright.

Answer 12

Graph P is the only choice I can think of.

Answer 13

what's one point on graph P?

Answer 14

0

Answer 15

points are stated as ordered pairs

For example, on the graph M, one of the points is (2,1). This is one of the corner points of the triangle

Answer 16

14. Graph Q
16. Graph V