Q. Find the coordinates of the vertex of the following parabola algebraically. Write your answer as an (x,y) point.y=x2−10x+17Answer:
Identify Coefficient and Divide: The vertex form of a parabola is given by y=a(x−h)2+k, where (h,k) is the vertex of the parabola. To find the vertex of the parabola y=x2−10x+17, we need to complete the square to rewrite the equation in vertex form.
Square the Coefficient: First, we take the coefficient of the x term, which is −10, and divide it by 2 to get −5. Then we square −5 to get 25.
Complete the Square: Next, we add and subtract 25 inside the parentheses to complete the square: y=(x2−10x+25)−25+17.
Rewrite in Vertex Form: Now we can rewrite the equation as y=(x−5)2−8, which is now in vertex form.
Find the Vertex: From the vertex form y=(x−5)2−8, we can see that the vertex (h,k) of the parabola is (5,−8).
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