Question

MEDAL AND FAN!
Write an equation in slope-intercept form to model the relationship between x and y

Answer 1

Okay so do you have any idea on how to start this problem?

Answer 2

@megsk133 not really. :c

Answer 3

Well the first step to this problem is to find your slope

Answer 4

@megsk133 its decreasing

Answer 5

yes so you know that it will be negative. Do you know the equation to finding slope?

Answer 6

you slope equation needs to be in slope intercept form . y=mx+b

Answer 7

what do I plug in ? any initial value??

Answer 8

find your slope and plug it in for x

Answer 9

Kind of, For finding the slope of a line you need to pick two points on the line. I would suggest you're two intercepts

Answer 10

what are my two intercepts

Answer 11

You're intercepts are (0, 100) for the y because that's where the line crosses the y axis and (0,5) because that's where the line crosses the x-axis

Answer 12

So to find your slope you want to plug your intercepts into this equation to get your slope\[Y2-Y1divX2-x1\]

Answer 13

sorry that looks confusing (y2-y1)/(x2-x1)

Answer 14

it does !
D:

Answer 15

okay so (0,100) x1= 0 y1=100 and (5,0) x2=5 and y2= 0

Answer 16

then you plug into the equation to get your value

Answer 17

slope

Answer 18

so y = 0x5 + 0

or something like that?

Answer 19

no what you'd want to do is plug your intercepts into the slope equation: (0-100)/(5-0)=-25 , -25 is your slope so that you would plug in for m in y=mx+b

Answer 20

so now all you need is b which is your x intercept which is 5 so your final answer is y=-25x+5

Answer 21

does that make sense?

Answer 22

kind of thank you

Answer 23

you're welcome