How do you graph #2x + y = –1# by plotting points?
1 Answer
Aug 31, 2017
See a solution process below:
Explanation:
First, solve for two points which solve the equation and plot these points:
First Point:
For
Second Point:
For
We can next graph the two points on the coordinate plane:
graph{(x^2+(y+1)^2-0.025)((x+1/2)^2+y^2-0.025)=0 [-10, 10, -5, 5]}
Now, we can draw a straight line through the two points to graph the line:
graph{(2x+y+1)(x^2+(y+1)^2-0.025)((x+1/2)^2+y^2-0.025)=0 [-10, 10, -5, 5]}