linear

There are exactly 2 distinct linear functions which map [-1,1] onto [0,2].Find them.

12 Answers

11
Mani Pal Singh ·

1
Pavithra Ramamoorthy ·

is dis a well defined function?????????/

24
eureka123 ·

no mani....

11
Mani Pal Singh ·

AGGAR ANSWER AISA NAHIN HAI TO I THINK I MISUNDERSTOOD THE QUESTION!!!!!!!!!!!!

R U ASKING 4 A FUNCTION???

24
eureka123 ·

yup..........in (x,y) terms

11
Mani Pal Singh ·

y=x-1
y=x+1

aisa kuch???

1
Pavithra Ramamoorthy ·

y=x+1 satisfies both elements...........

y=x-1 kaisae aaya???????????

24
eureka123 ·

dono function kaise aaye mani bhai????????

62
Lokesh Verma ·

hint

let the functions be f(x)=ax+b

rest is very simple :)

24
eureka123 ·

still cant get that sir........

i did like this
ax+b and cx+d
put the values of x,y

and got y=x+1
y=-x+1

is it oK??

62
Lokesh Verma ·

yes eureka.. it is correct :)

62
Lokesh Verma ·

ax+b goes from 0 to 2 as x goes from -1 to 1

so f(-1)=0 and f(1)=2

or
f(1)=0 and f(-1)=2

hence the answers :)

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