
The graph of the equation is attached in the figure below
Step-by-step explanation:
We need to make the graph of the equation: 
Solving the equation:

Applying absolute rule: |u|<a, a>0 then -a<u<a
So,

The graph of the equation is attached in the figure below.
Keywords: Solving inequalities by Graphs
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A) point (8.28)
the time is 8 minutes
28 is the water level which is 28 cm
b) 3.5
the function for the situation is y=3.5x
the slope of the function is equal to the value of the unit rate
Answer:
Yes, it is possible if the sweaters on sale are $7.40 each.
Step-by-step explanation:
The sweaters each cost $37. To purchase all four (for herself and 3 sisters) without a sale would be 4(37)= $148.
40% off the regular price would be 0.40(148)= $59.20 savings. She would spend 148-59.2= $88.80.
Is it possible to buy two regular price sweaters and two on sale for $88.80?
2(37)=$74. If we subtract from the sales total, 88.80-74=14.80. This means the two sweaters on sale must each be $7.40. It is possible to save 40%.
1. The best thing to do is to find out what 1% is. 235/100= 2.35
As you're looking for 27%, you then multiply 2.35*27= 63.45
As you're increasing it, you've then got to add this to the original amount.
235+63.45= 298.45
2. Again, find 1%. 24/100= 0.24
0.24*9= 2.16
24+2.16= 26.16
3. Find 1%. 1120/100= 11.2
As you're looking for 13.5%, you then multiply this by 13.5
11.2*13.5= 151.20
As you're subtracting, you then take this away from the original number.
1120-151.20= 968.80
4. This time, you can find 10%.
0.057/10= 0.0057
0.0057*5.5= 0.03135.
You've then got to subtract this as you're decreasing the number.
0.057-0.03135= 0.02565.
Sally's investment is now worth £585. (Find the 30% and add it on) and Susie's investment is now worth £585 (Find the 10% and subtract). They both have the same amount of money.
Hope this helps :)
Answer:

Step-by-step explanation:
Given
See attachment for table
Required
Determine the average rate of change over 
Average rate of change is calculated using:

Where

In this case:




From the table:


The expression becomes


