What is the value of the function y = 3x -1 when x = –1?

A. –8
B. –4
C. 2
D. 6

Question

What is the value of the function y = 3x -1   when x = –1?
	
A. –8
B. –4
C. 2
D. 6

nnesha · Answer

just substitute x for -1
that's it
don't copy paste #mazztag ;P

nnesha · Answer

and remember it's 3 times x

testing123guest · Answer

i got B. -4 but i do not think that is it 
is it B

testing123guest · Answer

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inkyvoyd · Answer

Don't mass tag.
Thanks.

testing123guest · Answer

okay sorry

nnesha · Answer

sign:)
why do you think its B ?? why u r not 100% sure ???
how did you get B ?

alexandervonhumboldt2 · Answer

substitute -1 for x and solve. well, yeah you are correct.

testing123guest · Answer

because most of the time when i am stuck on a question i go to this site called mathpapa and it said this

y=(3)(−1)−1

Answer:
y=−4

but it does not look right

nnesha · Answer

substitute  y for -4 and x for -1 
both side are equal ? good to go!

nnesha · Answer

papa is correct 
medal for papa!

testing123guest · Answer

cool thank u

nnesha · Answer

is it a website ? or u r kidding ?

nnesha · Answer

oh nvm its a calculator LOL math *papa*

testing123guest · Answer

lol nope its real see http://www.mathpapa.com/algebra-calculator.html

testing123guest · Answer

@Nnesha