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-x^2-x+2 find the vertex
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i no its -b/2a
so i did -1/2(-1)
i got 1/2
a = -1, b = -1 and vertex = -b/2a so plug the values in
correct
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oops its -(-1) / -2 = -1/2
sorry!!
you have a double negative -(-1) = +1
its -1/2
here is another one -x^2-x+1
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get the same -1/2
whats the second half though
sorry ? pardon ??
like the first point is -1/2 but i need another one bc the vertex makes up two points
the -1/2 is the x in P(-1/2,y) the other point can be obtained from the equation, substitute the -1/2 for x and solve for y.
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* change to read: the y value can be obtained from the equation, substitute the -1/2 for x and solve.
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