Question

6. Which rule matches the function graphed below?

(1 point)
A.y = –2x
B.y = x + 4
C.y = 2x
D.y = x – 4
(WILL GIVE MEDAL @tester97 @Johnbc

Answer 1

the x axis is our focus so we see which number falls on a whole integer and use that as x to solve for y and which ever matches up for all of those point given will be our function

Answer 2

wait so what is the X Axis

Answer 3

When x = 0 we see that y = 0
When x = - 2 we see that y =+4
When x = -4 we see that y = +8
So if we use any of those X values we must then also have that y value come out of our function for it to be the equation of the graph

Answer 4

Refer to the attachment.

Answer 5

First you find the slope of the line first and that tells you "x" and then you find where the line intersects the Y axis and that will tell you the "b"

To find slope: \[\frac{ y_2-y_1 }{ x_2-x_1 }\]
Now we can pick two points on the graph so i will chose (-4,8) and (-2,4)
Now lets plug that in.\[\frac{ 8-4 }{ -4-(-2) }\rightarrow \frac{ 4 }{ -4+2 }\rightarrow \frac{ 4 }{ -2 }\rightarrow -\frac{ 2 }{ 1 }\rightarrow-2\]
So -2 is your slope here and since the line does not intersect the Y-Axis there is no "b"

Then your answer will be A. y=-2x

Answer 6

Thx @tester97

Answer 7

welcome ;)

Answer 8

Can i ask you another

Answer 9

@tester97

Answer 10

sure just make a new post