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Mathematics 21 Online
OpenStudy (anonymous):

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OpenStudy (alexandervonhumboldt2):

substitute -3 instead of x and solve the equation

OpenStudy (alexandervonhumboldt2):

you will get f(-3)=3*(-3)+2=solve

Directrix (directrix):

f(x)+ = 3x + 2 means that wherever x appears, you will multiply it by 3 and then add 2. f(-3) = 3*(-3) + 2 = ?

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