The graph of y=f(x) is shown in red above. For how many values of c is f(c) = -1?
(Assume grid lines are spaced 1 unit apart.)
We want to find where the y value of the graph = -1
Notice that the graph intersects the line y = -1 at 4 places
So.....4 values of c where this occurs
Hope that makes sense
Thank you!
Ur welcome !!!!!
+106 
