Find the slope of the line whose equation is 8y = 4 - 3x.

-3/8
-8/3
2

Question

Find the slope of the line whose equation is 8y = 4 - 3x.

-3/8
-8/3
2

anonymous · Answer

First, remember 
$$y=mx+b$$
where m is the slope so right now you have

$$8y=4-3x$$
and you want

$$y=f(x)$$
or in otherwords you want y without the 8 or the constant

anonymous · Answer

y=(4-3x)/8
slope is y'
that is the derivative of y
y'=dy/dx
y'=((4-3x)/8)'
y'=-3/8

anonymous · Answer

derivatives are not needed for this

anonymous · Answer

if you divide by 8 and put it in the 
$$y=mx+b$$ form, you'll see the slope

anonymous · Answer

yes, derivatives are not needed for such simple functions, but the generic approach is always more useful, as it can be used for all rational functions. For a simple function of type y=ax+b, the slope is simply a