how can i graph this? /or solve it?
2007-07-22 14:14:10 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
You can't solve it, because the value of Y will change for every value of x. Draw your grid and and plug in values for x starting with 0 (Y>=1), then 1 (Y>=3), etc. Plot x and y for each set. Do the same using negative integers for x. You should end up with diagonal lines radiating upward and to the right for positive integers, down and to the left for negative integers, with the line intersecting the X axis at 1. Shade the area line and the y axis -- that represents all the possible solutions.
2007-07-22 14:39:04 · answer #1 · answered by glinzek 6 · 0⤊ 0⤋
Assuming you know about linear equations ... simply graph the linear equation y >- 2x+1. You would then shade in that side of the line which makes the inequality equation true (pick a point on either side if the line and stick it into the original equation and see if it is true ... if true then that is the side of the equation to shade in). Your final answer is really the line itself and the shaded in side of the line.
2007-07-22 14:20:19 · answer #2 · answered by T C 2 · 0⤊ 1⤋
the y-intercept is (0,1) and the slope is 2/1
plot the points (0,1) and (1,3) and graph a solid line.
Greater than means shade the "half plane"above the line.
2007-07-22 14:20:37 · answer #3 · answered by gfulton57 4 · 0⤊ 0⤋