SOLUTION: Would you solve this problem? y=2x+5 (8, ) (-1, ) ( ,1)

Algebra ->  Coordinate-system -> SOLUTION: Would you solve this problem? y=2x+5 (8, ) (-1, ) ( ,1)       Log On


   



Question 334522: Would you solve this problem?
y=2x+5 (8, ) (-1, ) ( ,1)

Found 2 solutions by jim_thompson5910, vleith:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Remember that all points are in the form (x,y). So for something like (8, ), plug in x=8 and solve for y to get the missing coordinate.


On the flip side, for something like ( ,1), plug in y=1 and solve for x to find the missing coordinate.

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
I would if I had too :)
Just plug in the x values given and solve for y
y+=+2x+%2B5
x = 8
y+=+2%2A8+%2B+5
y+=+16%2B5
y+=+21
(8,21)
x=-1
y+=+2%2A%28-1%29+%2B+5
y+=+-2+%2B+5
y+=+3
(-1,3)
The last one gives you y and requires you solve for x
y = 1
y+=+2x+%2B5
1+=+2x+%2B5
-4+=+2x
-2+=+x
(-2,1)