Suppose y varies directly with x and y=-20 when x=-1 what direction variation equation relates to x and y what is the value of y when x=-10

Question

asked Feb 21, 2023 154k views

1 Answer

Bratkartoffel · Answer 1 · 2023-02-26T06:08:53+0000

Given:-

suppose y varies directly with x and y=-20 when x=-1.

To find:-

what direction variation equation relates to x and y what is the value of y when x=-10.

y varies directly with x that means y is directly propotional to x.

Value of y=-20 when x=-1, so substituting we get,

$\begin{gathered} -20=k*-1 \\ 20=k \end{gathered}$

So the value of k is 20.

So the direct equation is,

Now we find the value of y when x=-10,

$\begin{gathered} y=20*-10 \\ y=-200 \end{gathered}$

So the value of y is -200.