Question

What is the domain of this relation?
{(-3, 0), (-2, -5), (-2, 6), (3, 7), (0, -17)}

Answer 1

domain are the values of x, you have (x,y)
so what are the numbers of the domain?

Answer 2

http://www.purplemath.com/modules/fcns2.htm

Answer 3

so just the x

Answer 4

-3,-2,-2,3,0?

Answer 5

ok, good, but remember not to repeat numbers, and put them is order as follows
Domain {-3,-2,0,3}

Answer 6

thanks fo the help bruh

Answer 7

your welcome :)

Answer 8

{(6, -6), (7, -7), (3, -3)}

Answer 9

is that a function

Answer 10

it is a function when the x's are not repeated, therefore yes that is a function because you have domain {3,6,7},
now the other example on the top is not a function because you have x's with the same value.
understand ?

Answer 11

yea so this is NOT A FUNCTION {(Tom, 18), (Sue, 12), (Jorge, 28), (Sue, 28)}

Answer 12

cuz sue

Answer 13

no because you have Sue twice on the x value, not a function

Answer 14

yea thats wat i said

Answer 15

that is correct

Answer 16

ok 1 more please

Answer 17

ok

Answer 18

Find the indicated output for this function
If h(x) = x - 2, find h(21)

Answer 19

19?

Answer 20

just substitute the x for 21 so you have
h(21) = 21 - 2 = 19 yes that is correct

Answer 21

State the range of the numbers displayed in column x and column y.
x y
1 5
2 7
3 9

Answer 22

the range are values of y

did you see the website that I attached ?