SOLUTION: Please help me. I have to write an equation in point-slope form of the line that passes through the given points. My points are (1,5) and (-1,-5). I understand how to plot the poin

Algebra ->  Graphs -> SOLUTION: Please help me. I have to write an equation in point-slope form of the line that passes through the given points. My points are (1,5) and (-1,-5). I understand how to plot the poin      Log On


   

Question 263602: Please help me. I have to write an equation in point-slope form of the line that passes through the given points. My points are (1,5) and (-1,-5). I understand how to plot the points, but not how to put them in this formula
y= mx+b
Found 2 solutions by richwmiller, stanbon:
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
first find the slope
(y-y)/(x-x)=m the slope
y=mx+b
plug in your new m
and one set of x and y to find b
then plug in your new m and new b into y=mx+b
and you are done
your new equation should like y=3x+4 but with different numbers

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
I have to write an equation in point-slope form of the line that passes through the given points. My points are (1,5) and (-1,-5).
----
slope = (5--5)/(1--1) = 10/2 = 5
-------
Form is y = mx +b
You know m and that y = 5 when x = 1
Solve for "b":
5 = 5*1 + b
b = 0
--------------------
Equation:
y = 5x
==============
Cheers,
Stan H.





I understand how to plot the points, but not how to put them in this formula
y= mx+b