Use the given graph of the function f to answer parts an f F

Use the given graph of the function f to answer parts (a)-(n). (f) For what values of x is f(x) > 0? (k) How often does the line y = 1/2 intersect the graph? (l) How often does the line x = 5 intersect the graph?

Solution

f) for what values of x , f(x) >0

Now we can see f(x) is above the x axis for the intervals ( -3, 6) U ( 10, 11)

k) Gawr the y =1/2 and check at how many points it interecst f(x)

It can be seen y = 1/2 intersects at 3 points

l) Draw vertical line x=5 on f(x)

It intersects at only one point