Question

Find the value of k if it is known that the graph of y=kx goes through:

B(−30, 3)

Answer:
k=_____

Answer 1

add the point, x=-30, y=3:

y=kx

3=k*-30

3=-30k

-1/10=k

so the final answer:

k= -1/10

Answer 2

insert the point, x=-30, y=3:
y=kx
3=k*-30
3=-30k
-1/10=k