Posted by G on Saturday, March 8, 2008 at 6:04pm.
The way I unerstand from the book to graph this equation. I would start at
the Y intersect and go up to 1. The go up 2 for the slope. Then across 4 on the X axis. The book shows the graph with the coordinates of (1,6) and (0,4). When I do it the way the book explains I do not arrive at these coordinates. Y
X' ' ' ' ' 0 1'2 3'4 5 '
Sorry about my poor looking graph.
Algebra-Graphing Linear Equation - Reiny, Saturday, March 8, 2008 at 6:51pm
To graph inequations (they have < or > or ≥ or ≤ in them), consider the corresponding "equation" which will become the boundary of the region you are graphing
So we would be dealing with
y = 2x + 4
put in x=1 ----> y = 2(1)+4 = 6
put in x=0 ----> y = 2(0)+4 = 4
that is how they got the two points (1,6) and (0,4)
Plot these two points, draw a dotted line, and shade in the region below that line.
for y > .... shade in above the dotted line
for y ≥ ....draw a solid line and shade in the region above
for y < .... shade in the region below, like your problem
for y ≤ .... draw a solid line, then shade in below
Answer This Question
More Related Questions
- ALGEBRA 1 - solve by graphing 3x+2y=8 6x+4y=16 You need to graph the 2 equations...
- pre-algebra - Explain the basic method(steps) for graphing a linear equation. ...
- Algebra - My book uses the slope y-intercept method for graphing. I am trying to...
- grasping algebra concepts - My book is showing the solution for graphing a ...
- Algebra - I am having to graph this linear equation. y=-2x+4 This is what I know...
- algebra - what is the slope-intercept form of the linear equation whose graph ...
- Algebra - Solve the following system of linear inequalities by graphing. x-3y>...
- Algebra - Is it possible to find the slope of a line if the equation has two ys...
- Algebra - Two graph never intersect. As such, the equation has no solutions. ...
- math - 1.graph equation y=4/5x 2.graph linear equation y=-1 3.find the slope of ...