2007-10-03 03:10:34 · 3 answers · asked by prava 2 in Science & Mathematics ➔ Mathematics
Also, 3x+2y=7
2007-10-03 03:11:21 · update #1
2x - 8y = 0
-8y = -2x
8y = 2x
y = 2x/8
y = x/4
If you need to graph by table of values, sub in x values such as -3, -2, -1, 0, 1, 2, 3 and find y values:
x | y
-3 | -3/4
-2 | -1/2
-1 | -1/4
0 | 0
1 | 1/4
2 | 1/2
3 | 3/4
Graph using these ordered pairs.
Repeat for other equation.
2007-10-03 03:17:40 · answer #1 · answered by kaos713 3 · 0⤊ 0⤋
You need only 2 points to draw a straight line:-
Question 1 (2x - 8y = 0)
(0 , 0) , (4 , 1) are two points
Question 2 (3x + 2y = 7)
(1 , 2) , ( 7, - 7) are two points
2007-10-03 04:06:46 · answer #2 · answered by Como 7 · 1⤊ 0⤋
2x-8y = 0 <=> 8y = 2x <=> y = x/4
now to draw the graph u will have to find some points coordinates so u can draw the graph
If X=-4 then Y=-1 (-4,-1)
If X=0 then Y=0 (0,0)
If X=4 then Y=1 (4,0)
now youve got the coordinates for 3 function points.. put them in a graph and draw the line to which they belong
hope it was useful
2007-10-03 03:24:45 · answer #3 · answered by Tiago H 2 · 0⤊ 0⤋