How do i graph 2x + 3y = 9
2 answers:
1) Find the y - intercept
you can do this by finding the value for y:
2x+3y=9 —-> move 2x to the other side
3y = -2x + 9 —> then divide both sides by 3
y = -⅔x + 3 <— this is your y-intercept
to graph this, start from the point (0,0)
your first point will be the constant which in this case is number 3
so plot this 3 on your y- axis on your grid
from there, your term in the equation which in this case is -⅔x
from your first point which is (0,3) you either:
go up two times, go left three times
or
go down two times, go right three times
you can do this by finding the value for y:
2x+3y=9 —-> move 2x to the other side
3y = -2x + 9 —> then divide both sides by 3
y = -⅔x + 3 <— this is your y-intercept
to graph this, start from the point (0,0)
your first point will be the constant which in this case is number 3
so plot this 3 on your y- axis on your grid
from there, your term in the equation which in this case is -⅔x
from your first point which is (0,3) you either:
go up two times, go left three times
or
go down two times, go right three times
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Answer:
Resulting plot in the image attached
Step-by-step explanation:
Start by making a table of (x,y) pairs that satisfy this equation. Notice that two pairs would be enough, but it is always safer to obtain at least three to see them actually "aligned".
We are trying to find values for y when x= 0, 2, and 4 to make our calculations simple:
When x = 0 then: So we plot the value (0,-3) on the x-y plane.
When x = 2 then: So we plot the value (2,-2) on the x-y plane.
When x = 0 then: So we plot the value (4,-1) on the x-y plane.
Please see the points and the resulting line in the image attached
Answer:
y=
Step-by-step explanation:
Rise over Run method, and the y-intercept is +1