Question

GIVE MEDAL
Edward plans to put $75 into a savings account. He can place his money into an account represented by b(x) = 7x + 75, or into another account represented by c(x) = 75(1.06)x. Which account has the highest value in 2 years? Which account has the highest in 12 years?

c(x) has the highest value in 2 years; c(x) has the highest value in 12 years
b(x) has the highest value in 2 years; b(x) has the highest value in 12 years
c(x) has the highest value in 2 years; b(x) has the highest value in 12 years
b(x) has the highest value in 2 years; c(x) has the highest value in 12 years

Answer 1

and it is not option C

Answer 2

Let me work it out now

Answer 3

Still here?

Answer 4

Yes

Answer 5

I think c(x)=75(1.06)^x is greater

Answer 6

Im going to show you a screenshot because their is exponents

Answer 7

I think it is because I got a higher number when I plugged in 2 and 12 c(x) has the highest value in 2 years; c(x) has the highest value in 12 years

Answer 8

So the correct answer would be C I got C

Answer 9

Its not C I chose that one and got it incorrect

Answer 10

this is the 3rd time im doing this question

Answer 11

Wait let me try again

Answer 12

b(x) = 7x + 75 c(x) = 75(1.06)^x
b(2) = 7(2) + 75 c(2) = 75 (1.06^2)
b(2) = 14 + 75 c(2) = 75 * 1.1236
b(2) = 89 c(2) = 84.27

b(12) = 7(12) + 75 c(12) = 75(1.06)^12
b(12) = 84 + 75 c(12) = 75 * 2.012
b(12) = 159 c(12) = 150.9

Answer 13

In two years b(x)=89 C(x)=159 In 12 years b(x)=159 C(x)=954

Answer 14

So it would be b(x) has the highest value in 2 years; b(x) has the highest value in 12 years?

Answer 15

c(x) has the highest value in 2 years; c(x) has the highest value in 12 years
b(x) has the highest value in 2 years; b(x) has the highest value in 12 years

Answer 16

Is it the first or second?^^^^^^^^^

Answer 17

That's as close as we can get try b(x)

Answer 18

Ok ima try the second option out of them two

Answer 19

Ok

Answer 20

bx has highest value in 2 yrs and in 12 yrs

Answer 21

I have another question.. can yall help me figure it out?

Answer 22

Sure

Answer 23

is it the one you posted a screenshot for ?

Answer 24

The one I posted a screenshot for you answered @texaschic101

Answer 25

This is the other difficult one im confused about.

Answer 26

the one you posted a screenshot for is the same one that you just posted again...lol

2^6 > 4(6) + 12
64 > 24 + 12
64 > 36

2^5 > 4(5) + 12
32 > 20 + 12
32 > 32....incorrect

so it is 6 months....anything less will not work

Answer 27

umm

Answer 28

Yes thats correct @texaschic101 I was just working it out and thats what I got :)

Answer 29

Thank You Ill give you a medal once again!

Answer 30

k