@zhana_gibson

Question

@zhana_gibson

greatlife44 · Answer

@Zhana_gibson here is your question 

"Graph the linear equation. Find three points that solve the equation, then plot on the graph.

x ‒ 4y = -18

mathmale · Answer

Can you graph a linear equation?  In your shoes I'd find the x- and y-intercepts and graph them.

mathmale · Answer

|dw:1475031019287:dw|

zhana_gibson · Answer

not really that's why i need help

greatlife44 · Answer

yeah try to show us what you would do

greatlife44 · Answer

Well, you can't do much with the form you currently have you need to turn it into 

y = m(x)+b

greatlife44 · Answer

first solve for y

zhana_gibson · Answer

i really don't know how to do any of that stuff can you break it down to me

greatlife44 · Answer

x-4y = -18

greatlife44 · Answer

so first step is to get y by itself. we need to subtract x from both sides. 


-4y = -18-x 

follow?

zhana_gibson · Answer

yes

greatlife44 · Answer

alright now what else do we need to do?

zhana_gibson · Answer

add 18??

greatlife44 · Answer

divide both sides by -4

greatlife44 · Answer

$$\frac{ 18 }{ 4 }+\frac{ x }{ 4 } = y $$

zhana_gibson · Answer

oh ok

greatlife44 · Answer

so now plug in x = 0 to find the value of y

zhana_gibson · Answer

ok

greatlife44 · Answer

what do you get for y ?

greatlife44 · Answer

i won't go any further because you need to be able to find the points yourself

zhana_gibson · Answer

working it out now

mathmale · Answer

List the x- and y-intercepts in the form (x,y).

zhana_gibson · Answer

no i really do need your help

greatlife44 · Answer

yeah so we have a straight line something like this: 

|dw:1475031466397:dw|

mathmale · Answer

What does x-intercept mean to you?

zhana_gibson · Answer

ok x-axis ??

mathmale · Answer

More than that.  Think again.  What does "intercept" mean?  What does "x-intercept" mean?

zhana_gibson · Answer

idk

zhana_gibson · Answer

???

greatlife44 · Answer

try

greatlife44 · Answer

the graph touches the Y axis and the X axis

mathmale · Answer

The x-intercept is the point at which the graph crosses the x-axis.  At such a point the y-value is zero.  So, in the original equation, let y=0.  What's left of the equation?  Solve it for x.  Show ALL work, please.

zhana_gibson · Answer

ok

mathmale · Answer

The equation is x - 4y = -18.
Let y=0.  What's left of the equation?

mathmale · Answer

If you want help, you're going to have to respond faster...a lot faster.

greatlife44 · Answer

i would just try it out

mathmale · Answer

Sorry, Zhana, but due to your lack of response (12 minutes), I'm leaving.  You might want to re-post this question.