|
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!
Found 3 solutions by jim_thompson5910, josgarithmetic, MathTherapy: Answer by jim_thompson5910(35256) (Show Source): Answer by josgarithmetic(39616) (Show Source): Answer by MathTherapy(10551) (Show Source):
You can put this solution on YOUR website! 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!
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 = , not
For point-slope form, you already know the slope: , and with one of the coordinate points: (4, 0),
the point slope form: becomes: , or
For slope intercept form, you already know the slope: , and the y-intercept, as represented by the
coordinate point, (0, - 2), so the slope-intercept form: y = mx + b becomes:
|
|
|
| |