Question

Can someone please help me?? Will Fan AND Medal!!!



Which functions have a positive rate of change and which have a negative rate of change?
Column A Column B
1.
2x − 5y = −15
2.
y = −4x + 9
3.
x y
2 –10
4 –16
6 –22

4.
x y
–3 15
–2 11
–1 7

A.
positive
B.
negative

Answer 1

hint: Rate of change is the slope

Answer 2

how do I find it?

Answer 3

@xapproachesinfinity

Answer 4

if i give this kind of equation y=2x-1
what is the slope?

Answer 5

2?

Answer 6

yes!

Answer 7

so then it is positive?

Answer 8

2x-5y=15
solve for y to have the same form that one have

Answer 9

how?

Answer 10

well of course it is positive do you see any negaative sign there?

Answer 11

I was talking about the equation.

Answer 12

y=-2x+1
this has negative slope

Answer 13

oh

Answer 14

well how do you solve a linear equation

Answer 15

?

Answer 16

2x-5y=-15
what do you do to solve for y?

Answer 17

you need to solve for y to find the slope
we want it to be of this form y=mx+b
where m=slope and b is y intercept

Answer 18

oh I got it.

Answer 19

ok!

Answer 20

you gonna do the same for the other ones

Answer 21

is that a table with two columns?

Answer 22

the way you wrote it is vague

Answer 23

if you have trouble making a table
take a picture of your problem and post it