Question 984266
Use the given conditions to write an equation for each line in point-slope form and slope-intercept form?

X-intercept=4
y-intercept=-2

I tried to work this out and this is what I got..

y=mx+b                                 
0=m(4)+b                                
-b    -b                                
-b=4m

y=mx+b
-2=0+b
b=-2

So then I would do...
4m=-2 and divide the 4 by 4 to get m alone and divide the -2 by 4 and get

m= -2/4, which is simplified to m= -1/2.

Its been a while since I have had a math class. Thank you for all your help!
<pre>An x-intercept of 4 results in the coordinate point (4, 0)
A y-intercept of - 2 results in the coordinate point (0, - 2)
Using the slope formula, you'll find that m, or slope = {{{1/2}}}, not {{{-1/2}}}

For point-slope form, you already know the slope: {{{1/2}}}, and with one of the coordinate points: (4, 0),
the point slope form: {{{y - y[1] = m(x - x[1])}}} becomes: {{{y - 0 = (1/2)(x - 4)}}}, or {{{highlight_green(y = (1/2)(x - 4))}}} 

For slope intercept form, you already know the slope: {{{1/2}}}, and the y-intercept, as represented by the
coordinate point, (0, - 2), so the slope-intercept form: y = mx + b becomes: {{{highlight_green(y = (1/2)x - 2)}}}