Q. Find the coordinates of the vertex of the following parabola algebraically. Write your answer as an (x,y) point.y=x2−2x+4Answer:
Identify general form: Identify the general form of the quadratic equation.The given parabola is in the form y=ax2+bx+c, where a=1, b=−2, and c=4.
Use vertex formula: Use the vertex formula for a parabola.The vertex of a parabola y=ax2+bx+c is given by the point (h,k), where h=−2ab and k is the y-value when x=h.
Calculate x-coordinate: Calculate the x-coordinate of the vertex h. For the given equation y=x2−2x+4, a=1 and b=−2. h=−(−2)/(2⋅1)=2/2=1
Calculate y-coordinate: Calculate the y-coordinate of the vertex k. Substitute x=h into the original equation to find k. k=(1)2−2∗(1)+4=1−2+4=3
Combine coordinates: Combine the coordinates to form the vertex point.The vertex of the parabola is at the point (h,k)=(1,3).
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