Question

What is the function rule for the graph shown?

Answer 1

@Yttrium

Answer 2

You have four given points, right? Using two of those points, you can find the slope through
m = (Y2 - Y1) - (X2 - X1) after finding the slope, choose any of those points and transform it to Y - Y1 = m (X - X1). There, you will get the answer. :)

Answer 3

ok I still do not understand it

Answer 4

Choose any two points from the graph.

Answer 5

ok

Answer 6

9.0 and 12.3 right?

Answer 7

Sure. Any two points you want.
Then solve for the slope let P1(9,0) and P2(12,3)
Then solve for m, using the formula I gave you.

Answer 8

how would you solve for m

Answer 9

from P1 you will have x1 and y1 which is 9 and 0 respectively. So, apply the formula.

Answer 10

get it @iceicebaby ?

Answer 11

no im sorry im really retarted today

Answer 12

let me show you
m = (y2-y1)/(x2-x1) note the pts (9,0) (12,3)
therefore, m = (3-0)/(12-9)
m = 3/3 = 1
Therefore m = 1

Answer 13

Now. Using y-y1 = m (x-x1) let any points, say (3,0)
therefore, y-0 = 1 (x-3)
y = x -3
so that's it. :)

Answer 14

oh thank you so much i felt really retarded trying to do this lol

Answer 15

but i need one of theese
y = 9x

y = x + 9

y = x – 9

y equals one over nine times x

Answer 16

let the point be (9,0)
so, y-0 = 1 (x - 9)
therefore, what is the answer? :)

Answer 17

y=9x

Answer 18

or wait y= x -9 right?

Answer 19

the 2nd one hehe

Answer 20

ok