Question

I need help with this, liner models
Carrington is paid at the same rate each time he baby sits. The graph shows the rates he is paid for different times.

Which equation represents the situation?
https://static.k12.com/calms_media/media/1512000_1512500/1512350/1/daf3a596b3d6b143c7a470822c2b47d5f1ee856f/MS_IMC-140516-100014.jpg

A. y=1/7x-5

B. y=1/7x+5

C. y=7x-5

D. y=7x+5

Answer 1

@Vocaloid

Answer 2

I really dont get this, yes I know the rise over run stuff, but this is confusing...

Answer 3

first find the difference in the y-coordinates

Answer 4

61-33 = ?

Answer 5

28

Answer 6

good, now find the difference in the x-coordinates

8-4 = ?

Answer 7

4

Answer 8

good.

the difference in the y-coordinates is the "rise" part
the difference in the x-coordinates is the "run" part

so rise/run = 28/4 = 7 = your slope

Answer 9

do you know how to find the y-intercept?

Answer 10

not exactly

Answer 11

look where the line touches the y-axis

Answer 12

it touches a 5

Answer 13

good

so our equation is

y = 7x + 5

Answer 14

thanks that helped a lot :)
other people made it to confusing I get it now :)