Were given the graph of a function and were asked to find the domain in range of the function F and the indicated function value. The graph of the function is located following exercise seven of this section. Yeah, so the first to find the domain and range of our function. Well, let's look at the x axis of this graph. We see that tracing the function function goes to both positive and negative infinity along the X axis. So the domain of the function f is going to be an interval notation from negative infinity to infinity. Of course, this can also be written. As he said of all riel members are now to find the range of our function. Let's look along the y axis. So we see that looking at the graph of our function, the function is always greater than or equal to y equals negative four and it goes to positive infinity. So our range of our function this is going to be from negative for inclusive to positive infinity notice that I've added the bracket here now in part a. The function value is f of negative too to find this value well, Look at the graph of our function. Find X equals negative two on the X axis and we'll trace up or down until we find where this intersex paragraph we see that it intersects the graph at why equal to zero and therefore the value of our function f at negative two is zero. Yeah, next in part B were asked to find the value f of negative one. Excuse me, so we'll do the same thing. We'll look at our graph. Look for negative one on the X axis. Excuse me and then will trace along the vertical line through this point until we find our graph. So if we trace downwards, we see that we intersect the graph and we do this at approximately. Why equals negative two on the Y axis. So the value of our point native one is negative. Two. Of course, one could also look at this and think that it's negative one. It's a little bit hard to tell here, so let's just say negative one. This is the answer that the book gives. After all, Next in part, C were asked to find the value f of one half. So to do this we look for one half on the X axis and then we find the corresponding point on the Y axis where we see that this intersects the line white zero. So the value is again zero. Now, finally, in part D rest find the value f of one. So we look at our X axis Moved to X equals one. Let me look to see where this intersects the graph. We see that the vertical line intersects the graph in the horizontal line. Why equals negative three? So the value is negative. Three. Alternatively, it might be a little bit harder to his side here. One could say or could make the argument that it's actually negative to, as the book does, so we'll just write negative, too, that would accept negative two or negative three personally.