SOLUTION: I really need your help.
Write the equation in slope-intercept form of the line passing through each pair of points: (6,-2) and (3,-4)
Write the equation in slope-intercept f
Algebra.Com
Question 55967: I really need your help.
Write the equation in slope-intercept form of the line passing through each pair of points: (6,-2) and (3,-4)
Write the equation in slope-intercept form of the line passing through each pair of points: (-8,2) and (0,6)
Thank you...
Found 3 solutions by Lacey020991, Hook, stanbon:
Answer by Lacey020991(49) (Show Source): You can put this solution on YOUR website!
Question 1:
The formula with a line that has a slope of m and a y-intercept (the value of y where the line crosses the y-axis) of b is
.
y = mx + b
.
To find the slope, m, of the line is the change in y divided by the change in x.
.
x1= 6 ; y1= -2
x2= 3 ; y2= -4
.
.
Now, to find the y-intercept, b, use one of the points to get the x and y values, and solve for b.
Remember:
x1= 6 ; y1= -2
x2= 3 ; y2= -4
.
y1 = mx1 + b
b = y1 - mx1
b = -2 - (6)
b = -6
.
Now that we know the slope, m = , and the y-intercept, b = -6, we can write the equation of the line:
.
y=
.
Question 2:
.
We would do the same process:
.
x1= -8 ; y1= 2
x2= 2 ; y2= 6
.
.
y1 = mx1 + b
b = y1 - mx1
.
b = 5.2
.
Now that we know the slope, , and the y-intercept, b = 5.2, we can write the equation of the line:
.
.
**Remember to always check your answer**
Answer by Hook(36) (Show Source): You can put this solution on YOUR website!
Remember that the slope-intercept form is . On these, you just have to find and . Also remember that
Let's find for your first problem:
Ok, now we have to find . Our equation so far is . If we plug one of the points (doesn't matter which one...) in for and , we can solve for .
Plugging in (3,-4)
Alright. Our equation is !!!
There. I did the first one. You can do the second one
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Write the equation in slope-intercept form of the line passing through each pair of points: (6,-2) and (3,-4)
You want y=mx+b; need to find m and b
m=[-2--4]/[3-6]=-2/3
b=-4+(2/3)3
b=-2
So, equation is y=(-2/3)x-2
----------------------
Write the equation in slope-intercept form of the line passing through each pair of points: (-8,2) and (0,6)
m=[6-2]/[0--8)]=4/8 = 1/2
6=(1/2)0+b
b=6
So, equation is y=(1/2)x+6
Cheers,
Stan H.
RELATED QUESTIONS
ok I have to write and equation in slope-intercept form for the line passing through each (answered by stanbon)
Write the equation in slope-intercept form for the line passing through each pair of... (answered by jim_thompson5910,solver91311)
write an equation in slope intercept form of the line passing through each pair of... (answered by jim_thompson5910)
write an equation in slope-intercept form of the line passing through each pair of... (answered by MathLover1)
write the equation in the slope-intercept form of the line passing through each pair of... (answered by MathLover1)
write an equation in slope intercept form of the line passing through each pair of... (answered by jim_thompson5910)
Hi guys, it's me again. I need your help on this one.
Find an equation of the line... (answered by Alan3354,rfer)
Hello out there,I'm writing for some help with some slope-intercept problems,the first... (answered by jim_thompson5910)
Hello out there,I need some help with some slope problems that is giving me a hard... (answered by jim_thompson5910)