If y various directly with x, write an equation for the direct variations. The find each value.

1.) If y = - 4 when x = 10, find y when x = 5

2.) If y = 12 When x = - 15, find y when x = 2

3.) Find x when y = 18, If y = 9 when x = 8

Show your work/explain

Question

Mathematics

Janessa Brown

4 January, 22:18

If y various directly with x, write an equation for the direct variations. The find each value.

1.) If y = - 4 when x = 10, find y when x = 5

2.) If y = 12 When x = - 15, find y when x = 2

3.) Find x when y = 18, If y = 9 when x = 8

Show your work/explain

+5

Answers (1)

Know the Answer?

Tristin Christian · Answer 1

The equation is y=kx

U have to substitute the numbers and once u get the k

You have to substitute the other numbers to get your answer

Forexample - question 1

Y=kx

Substiute the numbers

-4=k (10)

-2/5=k

Substitute 5 for x

Y=kx

Y=-2/5 (5)

Y=-2

If y various directly with x, write an equation for the direct variations. The find each value.1.) If y = - 4 when x = 10, find y when x = 52.) If y = 12 When x = - 15, find y when x = 23.) Find x when y = 18, If y = 9 when x = 8Show your work/explain

If y various directly with x, write an equation for the direct variations. The find each value.

1.) If y = - 4 when x = 10, find y when x = 5

2.) If y = 12 When x = - 15, find y when x = 2

3.) Find x when y = 18, If y = 9 when x = 8

Show your work/explain