Question

PLease help kinda forgot...
Which point is on the graph of y = –1.4x3?
A.(5,175) B.(2,-11.2) C.(9,1021) D.(-3,-37.8)

Answer 1

Is it x^3 , just confirming

Answer 2

the points are in the form (x,y) sub that in and see which one works

Answer 3

Instead of giving answers, I will guide you and you yourself would give the answer

Answer 4

b probably seeing as its the only one wher the sign works out

Answer 5

if you dont like decimals, maybe you can get rid off them :
\(\large y = -1.4x^3\)

\(10y = -14x^3\)

Answer 6

thanks you guys

Answer 7

ganeshie8 did you guys solve that triangle question again?

Answer 8

NO, the question is not over , tell us the answer

Answer 9

no lol that dude @No.name ran away the other day -.-

Answer 10

I didn't ran away . Actually that was not a problem in my hw. I just found it on internet. And i had to do a lot of hw

Answer 11

did u try it again @dan815 ?

Answer 12

I got b cause I plugged in (x,y) @no.name

Answer 13

ya im trying, still nothing

Answer 14

i know a way to do it but its not nitce! we can use algebra/calculus instead

Answer 15

writing equations of 4 lines
with angles 80,70 and -60,-80

Answer 16

wow ! never thought of a calculus solution xD

here are some hints for elementary geometric solution :
http://thinkzone.wlonk.com/MathFun/Triangle1Hint1.htm

Answer 17

Calculus , maybe beyond what i have leaarn't till now . I didn't get how u will apply calculus

Answer 18

ohh igot it! i think

Answer 19

really XD the original solution was like 3-4 pages long... and its kindof impossible by working it trial and error lol

Answer 20

im trying with these 3 lines, u can begin to solve for parts of the inner triangles angles

Answer 21

Did , u all see Bswan's cunning method of solving this ques