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Over [174]
2 years ago
7

Y is directly proportional to (x-4) when x=16, y=3 find y in terms of x

Mathematics
2 answers:
Paha777 [63]2 years ago
6 0

Answer:

y = ¼(x-4)

Step-by-step explanation:

Before solving the question, let's look at one example,

  • A is directly proportional to B means A∝B which also means A=kB where k is a constant.

In this case, y is directly proportional to (x-4) means that y∝(x-4) which can also mean that y=k(x-4).

Hence, to find the value of k, substitute x=16, y=3 into y=k(x-4),

3=k(16-4)

k=3/12

k=1/4

After that, substitute the k value into the equation,

<h3>y = ¼(x-4)</h3>

dalvyx [7]2 years ago
4 0
Y = x/4 - 1

Step by step explanation in pic

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