what are the two points from this equation so i can graph it
2x - 3y = 9
please if u can, explain
2007-08-23 11:57:54 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
If you're looking for two points, then just plug in something simple for x and solve the result to find a corrsponding y value. For example, plug in x=0 and you get y= -3. It's a straight line, and you only need two points to draw a straight line.
2007-08-23 12:01:02 · answer #1 · answered by Anonymous · 0⤊ 1⤋
2x - 3y = 9
Let x = 0. Then y=-3 so one point is(0,-3)
Let y=0. Then x = 4.5 so (4.5, 0 ) is a 2nd point.
Now draw a line between theses two points and extend it in bothe directions as far as you like. Every point on you line satisfies the equation 2x-3y = 9
2007-08-23 19:03:35 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋
Change it into slope-intercept form.
y = mx+b
For your equation, it would be:
2/3 x - 3 = y
To graph this,
you first have to move 3 up on the y-axis to the point (0,3).
Then, go up 2 and 3 to the right.
Continue this and draw the line.
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The 2 points you can use are (0,-3) and (0,9/2)
Hope this helps!
2007-08-23 19:03:39 · answer #3 · answered by boy101 3 · 0⤊ 0⤋
Pick a value for x, say 0, and solve for y...(0,y) will be one point
Then pick a value for y, say 0, and solve for (x,0) will be another point.
2007-08-23 19:03:48 · answer #4 · answered by gugliamo00 7 · 0⤊ 0⤋
2x-3y=9
2(2)-3y=9
4-3y=9
-3y=5
y=-5/3 or y=-1 2/3
2(5)-3y=9
10-3y=9
-3y=-1
y=-1/3
2007-08-23 19:06:16 · answer #5 · answered by kel m 2 · 0⤊ 0⤋
to do this u put 0 in for x and solve for y and then put 0 in for y and get x..... so x=4.5, and y= -3
2007-08-23 19:04:07 · answer #6 · answered by Anonymous · 0⤊ 0⤋
x= 9/2
y= -3
2007-08-23 19:01:52 · answer #7 · answered by reader 3 · 0⤊ 1⤋