Seek answers. Don't ask too much nonsense about math problems. Just give the answer. 100 gold coins to send you math problems in vocational high schools. - Training Enrollment Network

Seek answers. Don't ask too much nonsense about math problems. Just give the answer. 100 gold coins to send you math problems in vocational high schools.

Solution: (1) f (-1) = 2 * (1)+1=-1.

f(0)= 1

f( 1)=3

f(3)=7

(2)x≠4

(3)x≥-2

(4)

(5) monotonically decreasing at-4,0)

? Monotonically increase on 0, 3)

? 3,4 monotonically decreasing

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