Question 847670
Given f(x)=5+6x-x^2 find and simplify. 

I have to fill in a,b and c below. (Fill in the blanks)
Functions are simpler than they appear.
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f(x)=5+6x-x^2

 A)f(t-2)
Sub (t-2) for each x
f(t-2) = 5 + 6(t-2) - (t-2)^2
= 5 + 6t-12 - (t^2 - 4t + 4)
= 5 + 6t-12 -t^2 + 4t - 4
= -11 + 10t - t^2
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It's just substitution.
 B)f(z+h)-f(z)=____? 
 C)f(b)+3=_____?