Question

HELP PLEASE NOW!!!!!
Which functions have a positive rate of change and which have a negative rate of change?

Column A


Column B

--- AB
1.
2x − 5y = −15
--- AB
2.
y = −4x + 9
--- AB
3.
x y
2 –10
4 –16
6 –22
--- AB
4.
x y
–3 15
–2 11
–1 7
A.
positive
B.
negative

Answer 1

Please! I really need help!

Answer 2

is it ok if i help you an hour?

Answer 3

I guess. Thanks!

Answer 4

i'll just outline the steps for you,

you have to bring the equation to the standard form:
y = mx + c

'm' is the rate of change

Answer 5

Ok, so Standard form?

Answer 6

i will tell you how to bring the first equation to standard form

step 1: subtract 2x from both sides of the equation
step 2: divide both sides of the equation by -5

Answer 7

So, It would be x-5y=-17 then y= -3.4? And sorry. My computer keeps freezing.

Answer 8

no, subtract 2x ( not 2)

Answer 9

and from both sides of the equation

Answer 10

so then would it be y=3.4x?

Answer 11

Can someone help me??