it is asking me to graph the inequality in a coordiante plane.
y=>-x+4
how do i graph that?
plz help me step by step
2007-09-16 16:34:43 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
it islike this. First draw the XY graph.
To find values, u hav to substitute different values for x
when x=-2, y is 2 so mark this point in the graph. (-2, 2)
when x=-1, y= 3
x=0, y=4 this is the point the graph turns.
x=1, y=5
x=2,y=6
2007-09-16 16:44:39 · answer #1 · answered by Babygirl 3 · 0⤊ 1⤋
Graph y ⥠-x + 4.
If we look at the equality, it is the equation of a line. Graph the line. Since it is greater than or equal to, the line should be solid.
The line divides the plane into two half planes. The question is which side to shade? Plug in a sample point. Let's choose the origin O(0, 0). If the equation is true, shade the side of the line containing the origin. If it is false, shade the other side. In this case we have:
y ⥠-x + 4
0 ⥠0 + 4
0 ⥠4
This is false so shade the side of the line NOT containing the origin.
2007-09-16 23:47:47 · answer #2 · answered by Northstar 7 · 0⤊ 0⤋
plot the graph normal for y = -x +4/
since y is greater or equal, the area of the graph that satisfy the inequalities is on top of the straight line (greater than).
eg
\ area that is great than is here. area that
. \ is smaller than is below the slanted line
.. \
... \
.... \
..... \
2007-09-16 23:48:06 · answer #3 · answered by Matthew N 5 · 0⤊ 0⤋
draw a graph of x+4, then shade in anything above that line.
2007-09-16 23:42:26 · answer #4 · answered by ellie 2 · 0⤊ 0⤋