The equationi of a line that passes through (x1,y1) and has a slope of m is
y-y1=m(x-x1)
find slope
slope between points (x1,y1) and (x2,y2) is
(y2-y1)/(x2-x1)
given
(2,-5) and (-1,1)
slope=(1-(-5))/(-1-2)=(1+5)/(-3)=6/(-3)=-2
a point is (-1,1)
y-1=-2(x-(-1))
y-1=-2(x+1)
slope intercept is solve for y
y-1=-2(x+1)
y-1=-2x-2
add 1
y=-2x-1
D=answer i think
If im wrong im really sorry!
Answer:
You showed no model. However, looking at this equation it seems the answer would be x=3.
Step-by-step explanation:
Add 2 to both sides which leaves you with 6=2x and then divide both sides by 2 to get x=3.
Answer:
In order:
2nd step
1st step
3rd step
4th step
Step-by-step explanation:
The checking part comes last.
Before you can determine the solution, your lines need to be graphed.
To graph your lines, they have to be in a form for you to determine how to graph them.
So the first step here is
"Write each equation in a form that is easy to graph"
The second step is:
To graph them
Third step is:
To see where they cross
The last step:
(Some people don't do it but should is check it).