Asked by Sara

Please help!

Find the vertex of f(x)=x^2+2x-3
Find the vertex of f(x)=x^2-3x+1

Answers

Answered by Scott
the vertex is on the axis of symmetry
... x = -b / 2a

f(x)=x^2+2x-3
... x = -2 / 2*1 = -1

f(x)=x^2-3x+1
... x = - -3 / 2*1 = 3/2

plug the x's into their functions to find the y's for the vertex coordinates
Answered by Sara
Thank you!
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