A circular rug has a radius of 3 ft. What is the circumference of the rug? Use 3.14 for Pi.9.32 ft
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The expression for y in terms of "a" when value of x is doubled is
<em><u>Solution:</u></em>
Given that,
y is directly proportional to
Therefore,
Where "k" is the constant of proportionality
y = a for particular value of x
Therefore,
--------- eqn 1
We have to find when x is doubled
x is doubled means 2x
Let it be
Hence we get,
--------- eqn 2
Substitute value of k from eqn 1, we get
Thus expression for y in terms of "a" when value of x is doubled is