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Chapter 8: Q. 466 (page 1018)

If avaries directly as band a=16, when b=4, find the equation that relates aand b.

Short Answer

Expert verified

The equation that relatesaandbis,a=4b.

Step by step solution

01

Step 1. Given information

avaries directly as b.

a=16, when b=4.

02

Step 2. Write the formula for direct variation.

y=k.x.

We will use ain place of yand bin place of x.

a=k.b

Substitute the given values in the equation.

16=4.k.

Solve for the constant variation.

164=k.44k=4

Substitute k=4in the given equation.

a=4b

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