SOLUTION: Instructions from the book: For each of the following lines, the X-intercept and the y-intercept are both 0, which meanss the graph of each will go through the origin, (0,0). Gr

Algebra ->  Linear-equations -> SOLUTION: Instructions from the book: For each of the following lines, the X-intercept and the y-intercept are both 0, which meanss the graph of each will go through the origin, (0,0). Gr      Log On


   



Question 269693: Instructions from the book:
For each of the following lines, the X-intercept and the y-intercept are both 0, which meanss the graph of each will go through the origin, (0,0). Graph the line by finding a point on each, other than the origin, and then drawing a line through that point and the origin.
y=-2x
*I am so confused with this as far as what they are asking. I don't even know where to begin. Thanks in advance :0)

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
y=-2x
Just pick a value for x and then solve for y
x=0
y+=+-2%2A0+=+0
So one point is (0,0)
Now let x=1
y+=+-2+%2A+1+=+-2
A second point is (1, -2)
For fun pick another value for x
x = -5
y+=+-2+%2A+-5+=+10
Another point is (-5,10)
Plot these three points, and then draw the line that contains them,
You can see that all you needed was two points to get the line.
graph%28400%2C400%2C-10%2C10%2C-10%2C10%2C+-2x%29