The value of y varies directly with x, and y=-18 when x=6. Find y when x=-8
Fink k: Use k to find y:
y=kx
y=(____) (____)
____=k y=____________

Question

The value of y varies directly with x, and y=-18 when x=6. Find y when x=-8
Fink k:                                         Use k to find y:
                                                   y=kx
                                                   y=(____)  (____)
____=k                                        y=____________

anonymous · Answer

The value of y varies directly with x, and y= 1/2 when x=5.
Find y when x=30.

Find k:                               Use k to find y:
                                            y=kx
                                            y= (_____)  (_____)
______=k                         y=_______

jim_thompson5910 · Answer

Are these 2 different problems?

anonymous · Answer

Yes

jim_thompson5910 · Answer

Please post one problem at a time

jim_thompson5910 · Answer

Which one did you need help with?

anonymous · Answer

The 1st one

jim_thompson5910 · Answer

The value of y varies directly with x, and y=-18 when x=6. Find y when x=-8
Fink k:                                         Use k to find y:
                                                   y=kx
                                                   y=(____)  (____)
____=k                                        y=____________

anonymous · Answer

What does k stand for?

jim_thompson5910 · Answer

y=kx

-18=k*(6) ... plug in y=-18 and x=6

-18/6 = k

-3 = k

k = -3

and k is just an unknown constant

jim_thompson5910 · Answer

So the equation is y = -3x

anonymous · Answer

Ohhhhhh ok thanks!

jim_thompson5910 · Answer

you're welcome

mertsj · Answer

What other 2 are you talking about?