3 years ago

Which statement is true about the y-intercept of a quadratic function?

Mathematics

1 answer:

viva [34]3 years ago

7 0

I think the answer will be A

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Ecursive formula f (n + 1) = f(n) – 2. If f(1) = 18, what is f(5)?

marishachu [46]

Answer:

$f(5) = 10$

Step-by-step explanation:

$f(n+1) = f(n)-2\\\\f(1) = 18\\\\f(1+1) =f(2)= f(1) -2 = 18 -2 = 16~~~~~~~~~~~~;[n=1]\\\\f(2+1) =f(3) = f(2) -2 = 16-2 = 14~~~~~~~~~~~~;[n=2]\\\\f(3+1) = f(4)= f(3) -2 = 14-2 = 12~~~~~~~~~~~~~;[n=3]\\\\f(4+1) = f(5) = f(4) -2 = 12 -2 = 10~~~~~~~~~~~~~~;[n=4]\\\\\text{Hence,}~ f(5) =10.$