please help

y = 2/5x - 3

graphing

Question

please help

y = 2/5x - 3   

graphing

the.lit.owl_23 · Answer

(sigh)

noname · Answer

$$y=\frac{2}{5x-3}$$ like that?

the.lit.owl_23 · Answer

I think so thx dude

noname · Answer

It looks like a transformation of the parent function 1/x. 
A vertical scale change of 2
Horizontal scale change of 5
Horizontal change of 3 to the right.

royalranger · Answer

Or is it:
$$\frac{ 2 }{ 5 }x -3$$

the.lit.owl_23 · Answer

yeaaaaaaaaaaaaaaaa

the.lit.owl_23 · Answer

y = 2/5 -3

royalranger · Answer

y = mx + b
What is your slope and what is your y-intercept?

noname · Answer

oh, so my equation was wrong?

the.lit.owl_23 · Answer

no

royalranger · Answer

Alright so which equation is it? you need to be clear.

troy121101 · Answer

@royalranger is correct, 2/5 would be your slope, and -3 your y-intercept

troy121101 · Answer

so one of the points you need to graph is the '-3' on the y-axis, because that is where the y intercepts the origin line on the graph

troy121101 · Answer

and then you need to figure out the x-intercept to find the slope

the.lit.owl_23 · Answer

(x,y)

troy121101 · Answer

right you you should have (0,-3) graphed on your sheet

the.lit.owl_23 · Answer

so far I have (0,-3)

the.lit.owl_23 · Answer

yep

troy121101 · Answer

good, now, a way to find this out, is since the numbers in "2/5" are positive, you would go up two, and right 5, and there is your x-intercept and slope form

the.lit.owl_23 · Answer

um

troy121101 · Answer

or up 2 and left 5, starting from your y-intercept graph point

the.lit.owl_23 · Answer

7?

troy121101 · Answer

or (0, -3), starting from that, you move up 2, and left or right 5, I am not sure which

the.lit.owl_23 · Answer

the graph is not right in front of me :(

troy121101 · Answer

okay, give me a second...

the.lit.owl_23 · Answer

would it be (7,-3)

royalranger · Answer

|dw:1481662835755:dw|

troy121101 · Answer

@royalranger is correct there

the.lit.owl_23 · Answer

thx soo it is (5,-3)

the.lit.owl_23 · Answer

??????? guys :(

royalranger · Answer

Do you know what y = mx + b means?

the.lit.owl_23 · Answer

I am sorry I am not very good a graphing

the.lit.owl_23 · Answer

yes

the.lit.owl_23 · Answer

Slope-intercept form: y = mx + b

troy121101 · Answer

Okay, so we can substitute 'm' for 2/5, as it being your slope, and 'b' for -3 as it being your y-intercept... Like this:
$$y = \frac{ 2 }{ 5 }x + -3$$

the.lit.owl_23 · Answer

ok

troy121101 · Answer

oh boy, now I am getting confused, lol

troy121101 · Answer

@royalranger can you add on to this?