SOLUTION: I have to find x and y.
X squared +2x-8 and y= 2x+1
This is from aug 2012 regents. I am practicing for my regents test. Thank you, K
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Question 757121: I have to find x and y.
X squared +2x-8 and y= 2x+1
This is from aug 2012 regents. I am practicing for my regents test. Thank you, K
Found 2 solutions by MathLover1, stanbon:
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
.......1 and
..........2
______________here you have system to solve.....subtract 2 from 1
or
or
now find
..........2..plug in
and
so, intersection points are: (,) and (,)
see it on a graph:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
I have to find x and y.
X squared +2x-8 and y= 2x+1
-------
y = x^2 + 2x - 8
y = 2x+1
------
x^2 + 2x -8 = 2x + 1
------
x^2 - 9 = 0
(x-3)(x+3) = 0
x = 3 or x = -3
----
If x = 3, y = 2x+1 = 7
If x = -3, y = 2x+1 = -5
===========================
Cheers,
Stan H.
===========================
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