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OpenStudy (anonymous):
f(r)=6r+9 f(5)= f(-3)= f(6.8)=
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OpenStudy (anonymous):
substitute the values for r in each equation
OpenStudy (anonymous):
f(5)=6(5)+9=39
OpenStudy (callisto):
f(5)= 6(5)+9 =39 f(-3)=6(-3)+9 =-9 try the last one!
OpenStudy (anonymous):
f(5) = 39 f(-3)= -9 f(6.8) = 49.8
OpenStudy (anonymous):
f(6.8)=6(5)+9=39-39=0 ??
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OpenStudy (callisto):
no! f(6.8)=6(6.8)+9=49.8
OpenStudy (anonymous):
oh, I see what I did... oops
OpenStudy (callisto):
you should replace 'r' with the number in the blanket and calculate it
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