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Mathematics 18 Online
OpenStudy (aa123):

pleeese help.

OpenStudy (aa123):

help

OpenStudy (aa123):

Find the function rule x y -2 9 -1 4 0 -1 1 -6 2 -11 FIND THE FUNCTION RULE PLEEESE HELP

OpenStudy (anonymous):

Oh No i dont know this sorry

OpenStudy (aa123):

ok

OpenStudy (lucaz):

notice when x increases by 1 y decreases by 5

OpenStudy (lucaz):

right?

OpenStudy (aa123):

thx

OpenStudy (aa123):

ok so whats the rule

OpenStudy (lucaz):

and you know that when x is zero y is -1, so -1 is the y-intercept

OpenStudy (aa123):

oh ok

OpenStudy (aa123):

so the rule is

OpenStudy (lucaz):

f(x) = -5(x)-1

OpenStudy (aa123):

Y=5-X right?

OpenStudy (lucaz):

y = -5x -1

OpenStudy (lucaz):

you can plug in the x values from the table to check

OpenStudy (aa123):

oh tjx are you sure this is right

OpenStudy (aa123):

ok

OpenStudy (aa123):

wowo thx

OpenStudy (aa123):

wait before you leave i will give you a medal and fan you

OpenStudy (aa123):

ok thx bro

OpenStudy (lucaz):

no problem

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