1 Using the following graph answer the folloving questions 1

1 Using the following graph answer the folloving questions: 1. Using the following graph answer the following questions: a) For what values ofx.is f(x) = 0? b) Find the approximate values for x s

Solution

a)

f(x)=0 is points where graph of f(x) crosses x axis. We can see from given graph there are 5 such points

Approximately they are

x= -5.5 , -3 , -1, 3 , 9

b)

We need to find two points here so that f(x) takes the value 3. For this graphically we look for points intersecting the line y=3. We can see from the given graph that there are no such points. The maximum value f(x) takes is around 2.5

c)

We can see the function curve going down as we go from x =2 to x=4 is f decreases

d)

f(0) is value of function at x=0 which we can see is aroudn 1 ie positive.