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What is the function rule for the graph shown? A graph of the ordered pairs: 9 comma zero, eleven comma 2, twelve comma 3, and fourteen comma 5.
can you write the number out
I will just attatch the graph
alright, let's pick out two points and find a slope betweent them
is that picture you? cuz if it is---- HOLY CRAB APPLES YOUR A BIG MAN
11,2 and 12,3
(11,2) and (12,3) slope y2 - y1 ------------------- x2- x1
so the second pair is x2,y2 3 - 2 ----------------- =1 12-11 that's your slope y=x+b
y=mx+b slope=m=1 so we plug in 1 y=x+b
so y = x + 9?
no, 9 is x intercept, you want the y interecept
to find b , simply plug x and y value from one ordered pair
let's choose (11,2) y=x+b 2=11+b b=-9
well now I am confused.. there are 4 answers and only on one of them is something other than 9.... and it is y = 1/9 * x
wait so y = x – 9?
oooohhhhhhhhh