SOLUTION: It is given that the axis of symmetry of the graph of the function y=x^2+kx+5＝-3. Find the value of k.
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Question 1005900: It is given that the axis of symmetry of the graph of the function y=x^2+kx+5＝-3. Find the value of k.
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
given that the axis of symmetry of the graph of the function . Find the value of .
recall: The axis of symmetry of a parabola is the vertical line through the vertex. For a parabola in standard form, , the axis of symmetry has the equation .
Note that is also the x-coordinate of the vertex of the parabola.
if , where and we have
....substitute in given equation and solve for
or
then, go back to , substitute values and for and find
=>=>
or
=>=>
so, your equations are:
or
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