The conversion of square feet to square yards can be represented by direct variation. Three square yards are
equivalent to 27 square feet. Let y represent the number of square yards and x the number of square feet. Then y
varies directly with x.
What is the constant of variation?
What is the equation representing the direct variation?
Done
Intro
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Solution:

Given that,

The conversion of square feet to square yards can be represented by direct variation

Let y represent the number of square yards

Let x be the number of square feet

y = kx ------ eqn 1

Where, "k" is the constant of variation

Three square yards are  equivalent to 27 square feet

Substitute, y = 3 and x = 27 in eqn 1

Thus the constant of variation is

What is the equation representing the direct variation?

Substitute k = 1/9 in eqn 1

Thus the equation is found

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc