Question

Answer question 23 thank you

Answer 1

`\boxed{\rm{r \: = \: 0.1}}`

Explanation:

Since x and y are proportional to each other, r is the constant of proportionality which is establishing the equation for these variables. r won't change with any set of values for y, x.

Put any set of values of y and x in the equation to find r (I'm choosing x = 14 and y = 1.4),

=> y = rx

=> 1.4 = r(14)

=> r = 0.1

`\therefore` The value of constant of proportionality (r) for this equation will be 0.1

Answer 2

Answer: r = 0.1

Explanation:

We can use the given equation to solve for r by substituting two of the given coordinate points.

Given:

y = rx

Substitute:

(1.4) = r(14)

Divide both sides of the equation by 14:

0.1 = r

Reflexive property:

r = 0.1