SOLUTION: graph the line using slope and y interscept. 2x+y=4

Algebra ->  Linear-equations -> SOLUTION: graph the line using slope and y interscept. 2x+y=4       Log On


   

Question 675745: graph the line using slope and y interscept.
2x+y=4
Found 2 solutions by josmiceli, ReadingBoosters:
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+2x+%2B+y+=+4+
Subtract +2x+ from both sides
+y+=+-2x+%2B+4+
The slope is +-2+ and the y-intercept is +4+
---------------------
A negative slope means the line is down on the
right and up on the left.
If you move plus +1+ along the x-axis,
you must then move minus +2+ on the y-axis
to have slope = +-2+
---------------------
Here's the plot:
+graph%28+400%2C+400%2C+-10%2C+10%2C+-10%2C+10%2C+-2x+%2B+4+%29+

Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
Transfrom to y = mx+b form
y = -2x + 4
...
slope is -2
y intercept is 4
(0,4)
...
x intercept is
0 = -2x + 4
-4 = -2x
-4/-2 = -2x/-2
x = 2
so, x intercept (2,0)
...
plot intercepts and draw a line through them
...
graph%28300%2C200%2C-10%2C10%2C-10%2C10%2C-2x%2B4%29
.....................
Delighted to help.
-Reading Boosters
Email: HomeworkHelpers@ReadingBoosters.com
Wanting for others what we want for ourselves.