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The value of y is directly proportional to the value of x. When = 512, y = 128.

What is the value of y when x = 64?

The value of y is directly proportional to the value of x. When = 512, y = 128. What-example-1
User Mokky Miah
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2 Answers

2 votes

Answer:

Explanation:

directly proportional means same

x=y

512=128

64=y

512/64=8

128/8=16

when x=64 then the value of y=16

User Pinturikkio
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5.1k points
1 vote

Answer:

C

Explanation:

given y is directly proportional to x then the equation relating them is

y = kx ← k is the constant of proportion

to find k use the condition when x = 512, y = 128

128 = 512k ( divide both sides by 512 )


(128)/(512) = k , that is k = 0.25

y = 0.25x ← equation of proportion

when x = 64 , then

y = 0.25 × 64 = 16

User Pexers
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