Question

Write an equation that models the sequence 200, 500, 1250, ...
A)
y = 120x + 80
B)
y = 80(0.4)x
C)
y = 80 (2.5)x
D)
y = 80 (120)x

Answer 1

do u see a pattern @kate_bell

Answer 2

no

Answer 3

\(\large\color{slate}{ r=(a_n)\div(a_{n-1}) }\)

Answer 4

so its not linear if u divide 1250 by 500
and 500 by 200 do u get the same answer ?
@kate_bell

Answer 5

yes, it isn't linear.
See how the rate of changes between \(\large\color{slate}{ a_1 }\) & \(\large\color{slate}{ a_2 }\) AND \(\large\color{slate}{a_2 }\) & \(\large\color{slate}{a_3 }\) differ?

Answer 6

is the answer c

Answer 7

yep if u divide 200 by 2.5 u will get 80 :) @kate_bell

Answer 8

yes, C is right!

Answer 9

ok thanks and can yall help me with some other questions please

Answer 10

np and sure i'll try

Answer 11

open a new question and tag me

Answer 12

The price of tomatoes went from $1.12 per lb to $1.96 per lb in three years. Find the rate of change of the price of tomatoes.
A)
$0.85 per lb per year
B)
$0.66 per lb per year
C)
$0.62 per lb per year
D)
$0.28 per lb per yea

Answer 13

@Godlovesme

Answer 14

\[m=y2-y1 / x2-x1\]
thats a formula for slope which is also rate of change
we have this ordered pairs (1, 1.12) and (4,1.96)
confused?

Answer 15

yes

Answer 16

the tomatoes cost $1.12 in the first year after 3 years (which is in the fourth year) it costs 1.96 got it?

Answer 17

yeah and sorry my computer was being retarted

Answer 18

@Godlovesme