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Mathematics 20 Online
OpenStudy (anonymous):

Write a function rule for the table. f(x) 2 –8 3 –12 4 –16 5 –20

OpenStudy (hunus):

are those alternating x and y values?

OpenStudy (anonymous):

OpenStudy (anonymous):

^CHECK THAT OUT

OpenStudy (hunus):

if f(2)=-8 f(3)=-12 f(4)=-16 f(5)=-20 The values are changing linearly so we know that the function has a rule of the form f(x) = cx f(2)=2x=-8 x=-4 thus the rule for the function x is to multiply x by negative 4

OpenStudy (anonymous):

looks like \[f(x)=-4x\]

OpenStudy (anonymous):

Is it A or C?

OpenStudy (hunus):

A.

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