SOLUTION: Which point is a solution of the inequality y>-3x+1? A (2,-1) B (0,0) C (-12,4) D (0,-1)

Algebra ->  Graphs -> SOLUTION: Which point is a solution of the inequality y>-3x+1? A (2,-1) B (0,0) C (-12,4) D (0,-1)       Log On


   



Question 305376: Which point is a solution of the inequality y>-3x+1?
A (2,-1)
B (0,0)
C (-12,4)
D (0,-1)

Answer by Edwin McCravy(20055) About Me  (Show Source):
You can put this solution on YOUR website!
Which point is a solution of the inequality y>-3x+1?
A (2,-1)
B (0,0)
C (-12,4)
D (0,-1)

Substitute them and see:

A: (2,-1)

Substitute x=2 and y= -1

y%3E-3x%2B1
-1%3E-3%282%29%2B1
-1%3E-6%2B1
-1%3E-5

That is true.  

B: (0,0)

Substitute x=0 and y=0

y%3E-3x%2B1
0%3E-3%280%29%2B1
0%3E1

That is false.

C: (-12,4)

Substitute x=-12 and y=4

y%3E-3x%2B1
-12%3E-3%284%29%2B1
-12%3E-12%2B1
-12%3E-11

That is false.

D: (0,-1)

Substitute x=0 and y=0

y%3E-3x%2B1
0%3E-3%28-1%29%2B1
0%3E4%2B1
0%3E5

That is false. 

So the only one that is true is A:

Edwin