-572.85 i just took the test and got it right
ANSWER
To graph the function

follow the steps below.
1. Find y- intercept by plugging in

.

is on the interval,

, so we substitute in to



Hence the y-intercept is

2. Find x-intercept by setting

This implies that

on

or

on

We now solve for

on each interval,

on

or

on

But observe that

does not belong to

This means it can never be an intercept for this piece-wise function.
Hence our x-intercept is

3. Plotting the boundaries of the interval.
For

on



.
This point

coincides with the x-intercept.


So we have the point

. But note that

does not belong to this interval so we plot this point as a hole.
For

on



So we plot



So we plot

also as a hole.
Plotting all these points we can now graph the function,

See attachment for graph.
The number is 58 because its less than 60 and greater than 50 and 5+8 =13.
Hope this helped you!
Answer:
D. -20
Step-by-step explanation:




Hope this helps!