SOLUTION: 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 w

Algebra.Com
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): You can put this solution on YOUR website!
In y = mx+b, the b is always the y-intercept. So b = -2


y = mx+b

y = mx+(-2)

y = mx - 2


Now plug in the point (4,0) from the fact that the x intercept is 4.

y = mx - 2

0 = m(4) - 2

0 = 4m - 2

2 = 4m

4m = 2

m = 2/4

m = 1/2 ... take note that the slope is positive, not negative

-------------------------------------------------------

In the end, the equation in slope intercept form is

In point slope form, the equation is . You can use the other point to get


Answer by josgarithmetic(39616)   (Show Source): You can put this solution on YOUR website!
You can start with standard form.

ax+by=c
---
This part removed because of unknown mistake---

BETTER......
You can also start with slope-intercept form.
, and you are given b.

Now find the slope using the two intercepts.



-
The equation should be . The slope-intercept equation for those two axis intercept points.

Point-slope form?
Pick either intercept point and fill in y-v=m(x-u) and after substituting the values, keep in this format.
-----the y-intercept used here
or equivalently


Look again at the slope-intercept form found:

Transform into standard form.
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:  

RELATED QUESTIONS


For each line,use the given conditions to write an equation in the point slope form and... (answered by swincher4391)

Use the given conditions to write an equation for the line in​ point-slope form and  (answered by josgarithmetic)

use the given conditions to write and equation for each line in point-slope form and... (answered by Alan3354)

use the given conditions to write and equation for each line in point-slope form and... (answered by MathLover1)

Use the given conditions to write an equation for each line in point-slope form and... (answered by ad_alta)

use the given conditions to write an equation for the line in point-slope form,... (answered by Cromlix)

Use the given conditions to write an equation for the line in point-slope form and... (answered by solver91311,DrBeeee)

Use the given conditions to write an equation for the line in​ point-slope form and  (answered by stanbon)

Use the given conditions to write an equation for the line in​ point-slope form... (answered by josgarithmetic,TeachMath)

3.13

Use the given conditions to write an equation for the line in point-slope form... (answered by josgarithmetic)