Question

Find the equation of the curve that joins the following points. Hint: Use common differences. (4 marks)

a) The zeros of the function are -3, 1 and 5. The y intercept is 15. Find the function.

b) (1,1), (0,1), (2,-5), (-1,-5)

Answer 1

@ganeshie8 @ParthKohli

hey could you guys please help me i have no clue how to do this.

Answer 2

@mathstudent55 @AndrewTheCookie @mathmate @TheSmartOne

Answer 3

a or b? The question seems to refer to b.

Show Your Work, please.

Answer 4

ok 1 sec i scan it

Answer 5

i got the answer for a) but i did not use common difference, dont know how to use it in this situation, and i dont know how to do part b)

Answer 6

b) , (-1,-5),(0,1),(1,1), (2,-5)

From -1 to 0 1 - (-5) = 6
From 0 to 1 1 - 1 = 0
From 1 to 2 -5 - 1 = -6

Answer 7

dont you have to rearrange it ?
then subtrac till you get a common difference ?

Answer 8

im not sure if i should rearrange it or not..

Answer 9

Yes. I rearranged and showed the first difference.

Answer 10

ah ok

Answer 11

let me try it out then thanks. I try it then get bak to you :)

Answer 12

hey could you tell me if a) is correct @tkhunny

Answer 13

yes a is correct

Answer 14

thank you :)

Answer 15

yw

Answer 16

a rough diagram should help with part b