i need help
#help me
sudden walrus
slim stirrupBOT
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sudden walrus
hii
i only put this ss bc i needed to put something
whats the first one tho
bc theres one i did that was wrong
@desert heart
sudden walrus
okay so this including the first one is all i need help with rn
i got these all wrong
but the other ones i got right
so im only sending the ones i have wrong
sudden walrus
Is it the second,third or fourth part and first?
wdym?
desert heart
whats the first one tho
I didn't understand this , so was clarifying
sudden walrus
I didn't understand this , so was clarifying
ohh
yes the first question
bc i got one of them wrong but idk which one i got wrong so can u check it
if u dont mind
desert heart
Yeah sure lemme check
The third part is a function
That is the error i believe
The (7,2) shouldn't have been repeated in the first place, cuz it for the same input you're getting the same output, so this pair has been repeated, and in roster form never a value can be repeated, so it's a question error is what I believe
desert heart
I'm checking the rest
In the line test question
The answer should be vertical line test
Option 3
Can you explain why you put horizontal line test, I will correct you according to your understanding
@sudden walrus
sudden walrus
ohh that makes sense, i mistook it because the line was going horizontally
desert heart
Well intuitively when you're doing horizontal test you're finding all the values of x that have the same y-value
desert heart
ohh that makes sense, i mistook it because the line was going horizontally
Yeah
Check your calculation at the fourth part of the $y+4=3x$ question
quartz yarrowBOT
Phoenix_17
desert heart
Once again
sudden walrus
ohh -10
sudden walrus
got it
desert heart
Picture 3
For a relation to be a function any input in domain can't relate to two values in codomain
So in this question since range is unique, x can't take the be equal to any other no. that is already there in the domain
desert heart
So in this question since range is unique, x can't take the be equal to any othe...
@sudden walrus is this clear?
desert heart
Picture 4
- it's a function because each value of x corresponds to a unique value of y,i.e each value of x corresponds to only one value of y...you may be confused by the 2 being repeated, however both of them correspond to the same value(i.e 4) so it fits within the function definition
Picture 5
It's not a function because it fails the vertical line test
desert heart
Show me your working for pictures 6,7,8
sudden walrus
Picture 4
1) it's a function because each value of x corresponds to a unique val...
all of them are functions ?
or just one ?
desert heart
Only first one
sudden walrus
okay so only first one is a function what about the rest
the rest are non fuctions right
desert heart
The second one isn't a function which you've marked correct
And third one isn't a function
desert heart
the rest are non fuctions right
Yup
desert heart
Picture 3
For a relation to be a function any input in domain can't relate to tw...
This
desert heart
So in this question since range is unique, x can't take the be equal to any othe...
And this
desert heart
No
desert heart
Yeah right
desert heart
Yes
sudden walrus
im on macbook
so i cant send a pic of it
ill write it down
so i did
so i did f (2) = 4x +5
wait
i just realized my mistake
i didnt make the x squared
one sec
okay
so f ( 2 ) 4 ^2 + 5
4^2 is 16
16 + 5 is 21
so f (2) = 21
and the other one its 0.2 isnt it
i graphed it on desmos
but i misclicked 2