Question

Relationship A has a greater rate than Relationship B. The table represents Relationship B.

Which equation could represent Relationship A?

Choose ALL answers that are correct.

Hours worked 2 4 5 8
Amount paid ($) 25 50 62.50 100

A. Y= 11.5x

B. Y=12.25x

C. Y=12.75x

Y=13x

@iGreen

Answer 1

Can you help me with this one @iGreen?

Answer 2

let me get this clear....Is the number under the 4 a 62 and the number under the 5 a 50 ?

Answer 3

or is that a decimal in there ??

Answer 4

2 4 5 8
25 50 62.50 100

Answer 5

you still there @texaschic101?

Answer 6

First we find the slope by using the slope formula : slope(m) = (y2 - y1) / (x2 - x1)
take 2 sets of points
(2,25)...x1 = 2 and y1 = 25
(4,50)...x2 = 4 and y2 = 50
now we sub into our formula
slope(m) = (50 - 25) / (4 - 2)
slope(m) = 25/2 which reduces to 12.5

now we just use y = mx + b and since we found m, we must now find b, the y intercept
pick a set of points...(2,25) ...x = 2 and y = 25
slope(m) = 12.5
now we sub
25 = 12.5(2) + b
25 = 25 + b -- subtract 25 from both sides
25 - 25 = b
0 = b

so your equation is : y = 12.5x + 0....which is the same as y = 12.5x

ok...I am not getting any of your answer choices. Is the problem written correctly ?

Answer 7

100% sure :/

Answer 8

let me try it again...I will use different points...give me a sec

Answer 9

ok

Answer 10

slope(m) = (y2 - y1) / (x2 - x1)
(4,50)...x1 = 4 and y1 = 50
(8,100)...x2 = 8 and y2 = 100
now sub
slope(m) = (100 - 50) / (8 - 4)
slope(m) = 50/4 which equals 12.5

nope..I am gonna get the same answer...y = 12.5x

sorry

Answer 11

well thats confusing :/

Answer 12

you sure the answer choices are written correctly ??

Answer 13

thanks anyway

Answer 14

sorry..I do not see what I did wrong :(

Answer 15

A. Y= 11.5x

B. Y=12.25x

C. Y=12.75x

Y=13x

those are it, I can choose more than 1

Answer 16

I do not see how it can be anything else but y = 12.5x.....we better get someone else over here to look

Answer 17

@hartnn ..can you check this please

Answer 18

lets check it...
(2,25)...x = 2 and y = 25
now sub into y = 12.5x
25 = 12.5(2)
25 = 25 (correct)

I believe your answer choices are wrong in your book

Answer 19

The table represents Relationship B.

Answer 20

None of them are right..

Answer 21

y =12.5x is for B

and A has greater rate

Answer 22

so y=12.75x and
y=13x
both could represent A
:)

Answer 23

Ohhh that's right!!

Answer 24

The answer is gonna be the answer with a greater slope than 12.5..

Answer 25

Which one's greater than 12.5? @Samus_Aran

Answer 26

Which one's are* greater than 12.5?

Answer 27

@hartnn I thought we weren't supposed to give answers out..

Answer 28

thank you @hartnn

Answer 29

D, C, and B

Answer 30

not B