Question

Explain, in complete sentences, how you would use the graphing method to solve the following system of inequalities and what the final solution will look like on the coordinate plane.

x – 2y < 18
4x + y > –5

Answer 1

whats the graphing method >

Answer 2

treat them like lines
y = mx + b , make two of them

Answer 3

You would put it in y = mx + b form to find the y-intercept and the slope, and so you plot the line. Then plug in a point that is not on the line to see which side is shaded.

For graphing use this website: http://my.hrw.com/math06_07/nsmedia/tools/Graph_Calculator/graphCalc.html

Note the lines won't show whether it is dotted or a solid line.

Answer 4

thanks so much!! :)

Answer 5

No problem :)

Answer 6

mito, you got a 3d grapher

Answer 7

i have a 3d grapher at romanlabs.com