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like the slope?

the first step is find the slope which is change in y divided by change in x

\[\frac{ 8 - 6 }{ 20 -15 } = \frac{ 2 }{ 5 } \]

yup.
\[6 = \frac{ 2 }{ 5 }(15) + b\] then \[6 = 6 + b \] to get \[0=b\] so \[b = 0\]

ok

is that enough to answer the question ?

idk im not sure what to do next

look at your choices

so do i plug in 3 for plants

you can do that. what do you get ?

1.2 so its B because 2/5 = .4

am i right?

yes,
and notice that 2/5 is the same a 0.4
so we could write the equation as
y = 0.4 x
or
F= 0.4 P

thnk you so much i have more can you help w/?

oh okay

one more

any thought on what x and y represent in this problem ?

y = hour and the tip is x?

so i was wrong

ok, can you write what you think y and x stand for ?

im not sure this one is really confusing

y will be the earnings

if she got no tips, how much are her earnings? Based on what they tell you.

60$

and if you write it as an equation
y= 60

now add in how much she makes in tips.
can you do that ?

y = 5.25x + 60

pretty close.
even better.
and yes, bingo!

lol

now use x=4 to find how much she made

y = 5.25(4) + 60 so
y = 21 + 60 equals
y = 81

so its C

yes

What is the slope of the line that passes through (2, 5) and (−1, 5)?
−3
0 <-- my choice
Undefined
3

yes (5-5)/(-1-2) = 0/(-3) = 0

yes

can you find the slope for g(x) (think of g(x) as "y") ?

\[\frac{ 30 - 12 }{ 6 -4 } = \frac{ 18 }{ 2 } = 9\]

so the function f(x) has a large slope

yes, 10 is bigger than 9

okay thnx

yw

what is the change in y divided by change in x for g(x) ?

now i think its D

it might be, but I would go with with g(x) slope is larger than f(x)

ok

but no guarantees on that one.

ill check with someone else later but thnx

any thoughts?

the slope

so D

yes

thnx i got only 2 more

this is similar to the one with the plants and it was like.4

it might not be a line with this one.

oh ok

true

but it sounds like "inverse variation"
in other words
\[ y = \frac{k}{x} \]

idk how to do that

use an (x,y) pair to "solve for k"
or in this case
\[ r = \frac{k}{w} \]
use a (w,r) pair

in other words, use (20,10) i.e. w=20, r=10 in that equation
and simplify to find k

\[10 = \frac{ k }{ 20 } \] \[20 * 10 = k \] \[k = 200\]

\[r = \frac{ 200 }{ w }\]

r = 40? so A

yes

i got one more plz

okay ill ask someone else thnx