Question

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Find the function rule:
X: -2, -1, 0, 1, 2
Y: 9, 4, -1, -6, -11

Answer 1

Looks like a foreign language to me, sorry.

Answer 2

multiply the x values by -5, this gives
10 , 5, 0, -5, -10

Answer 3

now compare these with the y values

-5x: 10 5 0 -5 -10

y: 9 4 -1 -6 -11


can you see a relation between the 2 lists

Answer 4

^ There we go, someone that understands the foreign language.

Answer 5

what do you need to do to get the y values from the '-5x' values?

10 goes to 9
5 goes to 4
0 goes to -1 ???

Answer 6

10 - what = 9?
5 - what = 4?

Answer 7

what do you need to subtract from 10 to get 9?

Answer 8

1

Answer 9

right

so our function rule is that we first multiply the x values by -5 then we subtract 1

in symbols that is y = -5x - 1

Answer 10

ok

Answer 11

good