10x+5y=500 What is the slope? Do I have to change it to slope intercept form first? Or is there a way to find slope with keeping that equation

Answer 1

the easiest way is indeed to use the slope-intercept form. It saves having to memorize another formula.

If

ax+by=c, then
by = -ax+c
y = -a/b x + c/b

and you can see that the slope is -a/b

Answer 2

Is the slope for 10x+5y=500
-2?

Answer 3

I changed it to slope intercept and got y=-2x+100

Answer 4

correct