can someone help me figure out how to graph this equation - 2x − 5y = −15

Question

can someone help me figure out how to graph this equation -> 2x − 5y = −15

anonymous · Answer

I was just about to tag you @563blackghost :P XD

smartnerd1111 · Answer

look at the pic

563blackghost · Answer

You have to get y by itself...so we would first subtract 2x to get it to the other side...

$\LARGE{2x-5y=-15 ~\rightarrow ~-5y=-2x-15}$ 

Next we would divide by -5 to get y by itself....

$\Huge{\frac{-5y}{-5}=\frac{-2x-15}{-5}}$

$\Huge{~~~~~~~~\downarrow}$

$\Huge\color{red}{y=\frac{2}{5}x+3}$

smartnerd1111 · Answer

we got the same answer yay

smartnerd1111 · Answer

we got the same answer yay

563blackghost · Answer

^^

mysticfury · Answer

alright i gotcha now how do i graph the slope intercept form? i need to figure out if it has a  negative or positive rate of change, or do i even need to graph it?

563blackghost · Answer

Well the slope does not contain a negative so it would be positive...

To graph you must know the format of slope-intercept form...

$\Huge{y=mx+b}$

$\Huge{~~~~~~slope~~y-intercept}$

m=slope
b= y-intercept

So first graph the y-intercept then place the slope...

mysticfury · Answer

okay so if the slope would be -3/4 thats negative rate of change and if it dosent have the - its positive?

so this would be negative then?
y = −4x + 9

563blackghost · Answer

Correct ^^

mysticfury · Answer

alright thank you very very much!

563blackghost · Answer

np :)