Question

Suppose y varies directly with x. If x = -8 when y = 1, find the value of y when x = 2.
Select one:
a. -3/5
b. -4
c. 2
d. -1/4

Answer 1

y=kx
1=k-8
k=1/-8

Answer 2

ok

Answer 3

y=1/-8(2)
y=-1/4

Answer 4

So that's the formula right?

Answer 5

Thanks.

Answer 6

np....yes

Answer 7

Suppose y varies directly with x. If x = 7 when y = -2, find the value of x when y = -6.

y=kx
-2 = k + 7
k = -2/7
y = -2/7(-6)
y = 1.7

Answer 8

y=kx is the formula

Answer 9

?? that's not right..

Answer 10

what i did ^^

Answer 11

its correct !!

Answer 12

for real? well my options are this:
a. -3
b. 12
c. 21
d. 7

Answer 13

@aryandecoolest

Answer 14

idk wat ya doing wrong here

Answer 15

in which question among those u need help?

Answer 16

2nd one

Answer 17

Suppose y varies directly with x. If x = 7 when y = -2, find the value of x when y = -6.

Answer 18

This is what I did y=kx -2 = k + 7 k = -2/7 y = -2/7(-6) y = 1.7

Answer 19

u will get x=21 .
see...
y=kx (suppose)
so -2=k*7----------> k=-2/7
now if y=-6 then,
-6=-2/7*x
x=21

Answer 20

Ohh

Answer 21

Thanks.

Answer 22

yeah enjoy! no problem :)

Answer 23

freaks sorry i missed that part.

Answer 24

Thanks again guys.

Answer 25

it's cool,it happens @cj49 and yeah pleasure to help @Yolo4mecuite