Question

Can anyone PLEASE help me, ASAP? ._. so confused. Sarah has been running a dog-walking business since 2010. She walks dogs twice a day, takes them to the park, and returns them to their homes. Each year, she has increased her fee by the same amount. The table shows what Sarah charged each customer for two given years of her business:
B. Write an equation in slope-intercept form to represent the fees that Sarah charges each year.

Answer 1

@jigglypuff314 Do you mind helping me? ^-^

Answer 2

well first we find the slope
given the "points"
(2010, 350) and (2014, 750)

do you know how to do that? :3

Answer 3

Well, I would think the slope would be 100 since the slope is the same thing as an initial value?

Answer 4

not quite!
initial value is y-intercept

slope is
(750 - 350)
---------------
(2014 - 2010)

Answer 5

400/4?

Answer 6

ohhh right
xD
you were right about the 100 then
but that's the slope, not initial value :P

Answer 7

Oh okay xD now what's next o.o I always get confused with slope intercept-form but I'm pretty sure it's something like y = mx + b

Answer 8

that's exactly it!
I'm honestly not sure what they want you to make the y intercept be...
do you think they're want you to plug in numbers based on 'how many years after 2010' or just 'the year is 2020 etc'?

Answer 9

I mean, I was following the rule, and I ended up with "y= $400x + $400, but it looks wrong to me so that's why I wanted to make sure I was actually right..

Answer 10

well it wont be 400 in front of the x
the slope of 100 would go there ^_^

Answer 11

So, y = 100x +$400?

Answer 12

how did you get 400?
in 2010 she started with 350 right?

Answer 13

Subtracted 350 from 700..

Answer 14

hmm
well the b value
in y = mx + b
b is the initial value which is the value she starts with
she started in 2010
and in 2010 she got 350

therefore the initial value should be 350 ^_^

Answer 15

So...y = 100x + $350? O.o

Answer 16

I hope so ^_^"

Answer 17

Alright, just so confused x.x

Answer 18

where are you still confused? :3

Answer 19

With just the whole slope intercept form concept, like y = mx + b, what does m, x, and b, represent?

Answer 20

m = slope
x = is years in this case
b = initial value

Answer 21

Thank you so much! >w< Learning about all of this slope-intercept form stuff has confused me alot.

Answer 22

I'm glad I could help ^_^
this problem was rather confusing to be honest :)

Answer 23

Agreed, I was stuck on it for about 10 minutes before I asked on here since I wanted that to be my last resort, I don't really like asking for help xD

Answer 24

Well, have a nice weekend ;w;