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Mathematics 11 Online
OpenStudy (anonymous):

f (x) = {-2 if x < -3 4x if -3 ≤ x ≤ -1 x^2 if x > -1 } What is the value of f(-2) A: 8 B: 4 C: -2 D: -8

OpenStudy (shubhamsrg):

can you tell me -2 lies in which interval ?

OpenStudy (anonymous):

um idk..

OpenStudy (nipunmalhotra93):

-8

OpenStudy (shubhamsrg):

a) -2 < -3 b)-3 < -2 < -1 c) -2> -1 which of the above is true ?

OpenStudy (anonymous):

C @shubhamsrg

OpenStudy (shubhamsrg):

you're not very comfortable or strong in numbers are you ? :|

OpenStudy (anonymous):

B! lol

OpenStudy (shubhamsrg):

you sure?

OpenStudy (anonymous):

yes

OpenStudy (shubhamsrg):

alright,,so when -2 is in between -1 and -3,,and we know that in that reigon,f(x) = 4x..right ?

OpenStudy (anonymous):

yea

OpenStudy (anonymous):

so im guessing its -8 if i have to 4 * -2

OpenStudy (shubhamsrg):

yep..bingo !

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