Question 61132: y=x squared-2x-9. Graph
Answer by praseena(37)   (Show Source):
You can put this solution on YOUR website! y=x squared-2x-9. Graph
y = x^2 -2x - 9
first of all give values for x like o, 1, -1, 2, -2 etc.
when x = o, we have y= 0^2 -2*0-9
= 0 -0 -9
= -9
when x=1 we have y= 1^2 -2*1 -9
= 1 -2 -9
= -10
when x =-1 , y = (-1^ -1) - (2* -1) -9
= +1 -(-2) -9
= +1 +2 -9
= -6
similarly
when x =2, we have y= -9
and when x = -2, we have y = -1
Now we have the values like this,
(x,y)
(0,-9)
(1,-10)
(-1,-6)
(2,-9)
(-2,-1)
Now plot these points in the graph.
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