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ttaysia
22.07.2019 •
Mathematics
Part b g(x)=−2x2+8x+3 (the second 2 is a exponet) write the function g(x) in the form y=a(x−h)2+k . write the equation for the line of symmetry for the graph of g(x). show all your work and explain your answer.
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Ответ:
plug it in to equation to get k:/
-8+16+3=11=k
solve for a by pluging (0,0)
then a= -11/4
Ответ:
(a)f(w)=50w+25
(b)Number of flowers for a given number of weeks
(c)f(30)=1525 flowers
Step-by-step explanation:
Number of flowers that bloomed, f(s) = 2s + 25, s=Number of seeds planted
Number of seeds planted per week, s(w) = 25w, w=Number of weeks
Part A
f(s) = 2s + 25
Substituting s(w) = 25w into f(s)
f(s(w))=2(25w) + 25=50w+25
The composite function is: f(w)=50w+25
Part B
The unit of measurement of the composite function above is Number of flowers that bloomed for a given number of weeks.
Part C
If w=30 weeks
Then from the function, f(w)=50w+25
f(30)=50(30)+25=1500+25=1525 flowers