The 8th term of an AP is 17 & the 19th term is 39, find the 25th term
2 answers:
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Let's replace x with -4 and simplify
y = (x/4) + 7
y = (-4/4) + 7
y = -1 + 7
y = 6
This means x = -4 and y = 6 pair up together.
So 6 goes in the box under the -4
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Repeat those steps for x = 0
y = (x/4) + 7
y = (0/4) + 7
y = 0 + 7
y = 7
So 7 goes in the box under the 0
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Let's repeat those steps for x = 4
y = (x/4) + 7
y = (4/4) + 7
y = 1 + 7
y = 8
So 8 goes in the box under the 4
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Lastly, for x = 8, we get
y = (x/4) + 7
y = (8/4) + 7
y = 2 + 7
y = 9
9 goes in the box under the 8
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The y outputs we got were: 6, 7, 8, 9
Notice how each time y increases by 1, x goes up by 4.
This means slope = rise/run = 1/4
We can think of x/4 as (1/4)x to help see that the slope is 1/4.
The real world example for the absolute value are to express the change in balance of account.
How to use absolute value in real world problem?
Absolute value in real world problem is used to express the change or variation from one point to another point. In the absolute value, the sign of the number is not consideredd.
Let a real world example-
- Everyone is going with 20 km/h and a person x is going with 15 km/h.
- The person x has most likely to get the token as the difference between his speed and public speed is 5 km/h.
- The sign of the number is not considered, whether it is +5 or -5 it is the difference of 5 km/h.
- The number line for this absolute value is plotted below.
The real world example for the absolute value are to express the change in balance of account.
Learn more about absolute value in real world problem here:
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