Question

can someone please help ill give metals

Answer 1

@ganeshie8

Answer 2

@SolomonZelman

Answer 3

what do you think the answer is to Part A? is it a relation or is it a function?

Answer 4

Do you know what the requirements to be a function are? Look at that first.

Answer 5

I think its a function

Answer 6

correct, how would you know?

Answer 7

I don't want any metals, my back already hurts from sitting here by my computer for so long:

Answer 8

a relation is called a function if it spits out the same `y value` everytime you input a particular `x value`

Answer 9

So, its not a function?

Answer 10

why ?

Answer 11

Honestly i am confused

Answer 12

look at the table, it has two columns.
first column represents input x values and the second column represents output y values

Answer 13

whats the y value corresponding to the x value of -1 ?

Answer 14

0?

Answer 15

Correct, one more question :
whats the y value corresponding to the x value of 1 ?

Answer 16

-1

Answer 17

Very good, last question :
whats the y value corresponding to the x value of 2 ?

Answer 18

1 and -2

Answer 19

that means it don't have "the y value" for the x value of 2

when you input the x value 2, the function spits out 1 some times and -2 sometimes

Answer 20

so the relation representing the given table is NOT a function

Answer 21

the table is just a relation, thats all.

Answer 22

Ok thank you can you help me with part B

Answer 23

so what exactly the part B is asking you to do ?

Answer 24

calculate and interpret the meaning for f(5) in f(x)=-x+8 I think?

Answer 25

yes so go ahead and calculate f(5)

Answer 26

\[\large \begin{align}\rm f(x) &= \rm -x+8\\~\\\rm f(5)&=\rm ?\end{align}\]

Answer 27

simply replace \(\large \rm x\) by \(\large 5\) and simplify

Answer 28

f(5)=3?? or

Answer 29

Excellent! what does it represent ?

Answer 30

the number of field goals?

Answer 31

thats right, what does "5" represent ?

Answer 32

distance in meters??

Answer 33

yes!
\[\large \rm f(5) = 3\]

tells you that Frank made 3 goals at 5 meters distance

Answer 34

Thank you! can you please help me with part C

Answer 35

what do you know about an ordered pair ?

Answer 36

they're two numbers written in a certain order??

Answer 37

kindof

Answer 38

\(\large \rm (x, ~y)\) is called an ordered pair. \(\rm x\) represents the input value and \(\rm y\) represents the output value

Answer 39

yes so it would be 5,3 (im not sure if that correct but we are using those numbers?)

Answer 40

\(\large \rm (5,3)\) is right for part B. but part C is asking you to write the ordered pair for the input value of \(\large \rm p\)

Answer 41

what is P

Answer 42

some number

Answer 43

\[\large \begin{align}\rm f(x) &= \rm -x+8\\~\\\rm f(p)&=\rm ?\end{align}\]

Answer 44

just replace \(\rm x\) by \(\rm p\) ^^

Answer 45

so -5?

Answer 46

im confused

Answer 47

\[\large \begin{align}\rm f(x) &= \rm -x+8\\~\\\rm f(p)&=\rm -p+8\end{align}\]

Answer 48

you can't simplify it further because p and 8 are not like terms

Answer 49

can you write the ordered pair ?

Answer 50

so is p going to be in the ordered pair?? i dont understand

Answer 51

yes

Answer 52

get use to alphabets in algebra :) the good days of numbers are gone

Answer 53

the ordered pair would be \(\large \rm (p, ~-p+8)\)

Answer 54

ok thank you so much!!

Answer 55

yw:)