Q. Find the coordinates of the vertex of the following parabola algebraically. Write your answer as an (x,y) point.y=x2−2x−7Answer:
Calculate x-coordinate: To find the vertex of a parabola in the form y=ax2+bx+c, we can use the formula for the x-coordinate of the vertex, which is −2ab.In our equation, a=1 and b=−2.Let's calculate the x-coordinate of the vertex.x=−(−2)/(2⋅1)=22=1
Find y-coordinate: Now that we have the x-coordinate of the vertex, we need to find the corresponding y-coordinate by plugging x=1 into the original equation.y=(1)2−2∗(1)−7=1−2−7=−8
Identify vertex point: We have found both coordinates of the vertex. The vertex of the parabola is at the point (1,−8).
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