Question

the variables x and y vary directly. write an equation that relates x and y. then find x when y=-4.

x=5, y=-15

Answer 1

@saifoo.khan could you help me again? this my last one.

Answer 2

I think you should try this one..

Answer 3

I will check your working.

Answer 4

ok
-15=x(5)
-75x

y=-300

?

Answer 5

first part second part

Answer 6

-15=k(5)
k = -3

Answer 7

Next:

y = k x
y = -3(x)

Answer 8

y=12?

Answer 9

Next:

y = k x
y = -3(x)
-12 = -3(x)

Now solve for x.

Answer 10

4

Answer 11

Right.

Answer 12

is that it??

Answer 13

Yup.