How do you graph 2x-y=4 using a table of values?
1 Answer
Rearrange equation, sub in values of
Explanation:
- rearrange the equation to give a more familiar form (like
y = mx+c )
move2x over gives,
-y = -2x + 4
multiply by-1 gives,
y = 2x - 4 - sub in values of
x , calc values ofy
whenx = 0, y = -4
whenx = 1, y = -2
whenx = 2, y = 0
whenx = 3, y = +2 - make a results table
already done, see above - plot these points (in red) on a standard x-y axes (in black) . gives a straight line (in blue).