Question

Giúp mik bài này với 

Answer 1

a: f(0)=5

f(-1)=2+5=7

f(-5/2)=5+5=10

Answer 2

f(0)= -2.0+5= 5

f(-1)= -2.(-1)+5=2+5+7

f(-\(\dfrac{5}{2}\))= -2.(-\(\dfrac{5}{2}\))+5=5+5=10