Giventhefunctionf:x→x
2-5x+6,evaluate
i)f(-1) ii)f(2a)
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Answer:
f(-1)=13,f(2a)=1
Step-by-step explanation:
f(-1)=2-5(-1)+6
=2+5+6
=13
f(2a)=2(2a)-5(2a)+6
=4a-10a+6
=-6a+6
-6a+6=0
-6a=-6
a=1
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