Question

What is the graph of the direct variation equation?

y = –4x

Answer 1

y=-4x
it is a decreasing graph for which for every 1 unit you move toward the positive x axis
you go down by 4 units in y direction

Answer 2

So , it would be the 3rd graph ?

Answer 3

the 3rd graph is increasing graph
for every unit that you go toward the positive direction you move there 4 units up in y direction

Answer 4

Ohhhhhhhhh, so its the 1st ?

Answer 5

no it is the last one

Answer 6

What , I don't understand how its the last one?

Answer 7

see what the first thing i wrote

Answer 8

Yes . . .

Answer 9

if you move one unit towards the positive x direction
you go down by 4 units in the y direction in the last graph

Answer 10

I kind of understand it a lil bit . . .

Answer 11

another way to find which graph is it
is by plugging values in x and see what the corresponding y

for example x = 1 gives you y = -4
which holds only for the last graph

Answer 12

Thank you .

Answer 13

yw