Question

Suppose y varies directly with x, and y = 14 when x = –4. What is the value of y when x = –6? (1 point)
–21
10
18
21

Answer 1

y = kx
14 = k*-4
solve for k

Answer 2

k=10?

Answer 3

how?

Answer 4

or is it k=18?

Answer 5

show me how?

Answer 6

oh, i didnt plug in the -6. i continued with the -4. so i would write out the formula, cancel out 14, then subtract fourteen from -6? and get -21

Answer 7

did i do that right?

Answer 8

@surdawi

Answer 9

14 = k*-4
solve for k

Answer 10

k=-21?

Answer 11

@jishan cn you help?

Answer 12

@cwrw238 can you help?