Question

Write an equation that expresses the relationship. Use k as the constant of variation. w varies directly as z b) w=kz c) k=wz e) none

Answer 1

Answer:

b

Step-by-step explanation:

w changes as z changes because k remains constant.

Answer 2

The equation that expresses the relationship between w and z is $w = kz$.

What is equation?

An equation is a condition on a variable such that two expressions in the variable should have equal value.

What is direct variation?

Direct proportion or direct variation is the relation between two quantities where the ratio of the two is equal to a constant value. It is represented by the proportional symbol, ∝.

According to the given question.

w varies directly as z.

⇒ $w \varpropto z ...(i)$

Since, k is the constant of variation.

Therefore, the above equation (i) can be written as

$w = kz$

Hence, the equation that expresses the relationship between w and z is $w = kz$.

Thus, option b is correct.

Find out more information about equation and direct variation here:

https://brainly.com/question/19676382

#SPJ2