, 5: Peter walks 5 m towards West, takes a right turn and walks 5m again. He then takes another right turn How far and walks 20m
. He then takes a Ònal right turn and walks 5m before stopping. How far is he from the starting point?
1 answer:
In the figure, P is the starting point of Perter.
Q is the point of his first right turn which is 5m from the starting point.
R is the next point of his right turn which is again 5m from P.
T is another right turn which is 20m from R.
U is the stop point which is 5m from T.
It is clear that P is the starting point and U is the stop point.
We need to find PU.
From figure, PU = ST but ST = RT - RS and RS = QP
Therefore, PU = RT - QP
PU = 20 - 5 = 15m.
Hence, he is 15m far from the starting point.
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Hello there!
We are given the function:
To find the range, we know that domain is the set of all x-values and also called 'input' while range is the set of all y-values and also called 'output'.
Basic Function - you add the input, you get the output. You add x-value in a function, you get y-value. You add domain, you get range.
So, we substitute x = 1,2 and 3 in the function.
<u>x</u><u> </u><u>=</u><u> </u><u>1</u>
Recall that any numbers in absolute value are always positive.
<u>x</u><u> </u><u>=</u><u> </u><u>2</u>
<u>x</u><u> </u><u>=</u><u> </u><u>3</u>
Therefore, Range: {-1,1,3}
Let me know if you have any questions!
Topic: Absolute Value Function / Modulus Function