SOLUTION: consider the linear equation 9x-2y=18 find the y intercept and x intercept Y-intercept:(A) ( ? , ? ) X-intercept: (B) ( ? , ? )

Algebra ->  Linear-equations -> SOLUTION: consider the linear equation 9x-2y=18 find the y intercept and x intercept Y-intercept:(A) ( ? , ? ) X-intercept: (B) ( ? , ? )       Log On


   

Question 669281: consider the linear equation
9x-2y=18
find the y intercept and x intercept
Y-intercept:(A) ( ? , ? )
X-intercept: (B) ( ? , ? )
Found 3 solutions by stanbon, solver91311, josmiceli:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
consider the linear equation
9x-2y=18
find the y intercept and x intercept
Y-intercept:
Let x = 0, then y = -9
(A) ( 0,-9 )
--------
X-intercept:
Let y = 0, then x = 2
(B) ( 2 , 0 )
==================
Cheers,
Stan H.

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


The -coordinate of the -intercept is zero, and the -coordinate of the -intercept is zero. So substitute 0 for in the equation and solve for the -coordinate of the -intercept. Then substitute 0 for in the equation and solve for the -coordinate of the -intercept.

John

My calculator said it, I believe it, that settles it
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Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
if you put it in the form +y+=+m%2Ax+%2B+b+,
then +b+ is the y-intercept
+9x+-+2y+=+18+
Add +2y+ to both sides
+2y+%2B+18+=+9x+
Subtract +18+ from both sides
+2y+=+9x+-+18+
Divide both sides by +2+
+y+=+%289%2F2%29%2Ax+-+9+
So, the y-intercept is at (0,-9)
-------------------------
To find the x-intercept, set +y+=+0+
+0+=+-%289%2F2%29%2Ax+-+9+
+%289%2F2%29%2Ax+=+-9+
+x+=+-2+
The x-intercept is at (-2,0)