If f(x)=2[x]+8 where [x] is greatest integer function of x then find f(-4.2) a) -2. b)2. c)0 d)-0.4 About the author Caroline
Answer: d)- 0.4 Step-by-step explanation: given , f(x)= 2x + 8 f(-4.2)= 2×(-4.2)+8 ==》-8.4 + 8 ==》-0.4 Reply
Answer:
d)- 0.4
Step-by-step explanation:
given ,
f(x)= 2x + 8
f(-4.2)= 2×(-4.2)+8
==》-8.4 + 8
==》-0.4