Part A.
In this part we have to find the increasing interval .
Increasing interval is that interval where graph goes up. And from the graph we can say that the graph goes up in the interval

And that's the increasing interval .
Part B.
Correct option is B
x and y intercepts
x intercept is the point where graph touches the x axis. And the graph touches the x axis at x=-1 and 1 .
So the x intercepts are

y intercepts are the point, where the graph touches or crosses the y axis.
Therefore the y intercept is (0,1)
So the correct option is D .
Answer:
( C ) 20 inch
Step-by-step explanation:
AB=28 inch ( given )
AP=26 inch ( given )
since that xy bisects and its perpendicular to AB and CD
then AX=48/2 = 24 inch
so by using Pythagoras theorem
then 26 squared - 24 squared = 10 inch
so XD+YD= 10 +10 =20 inch