Q. Find the coordinates of the vertex of the following parabola using graphing technology. Write your answer as an (x,y) point.y=x2+4x−2Answer:
Calculate x-coordinate: To find the vertex of the parabola, we can use the vertex formula for a parabola in the form y=ax2+bx+c. The x-coordinate of the vertex is given by −2ab.In our equation, a=1 and b=4.Let's calculate the x-coordinate of the vertex.x-coordinate = −2ab = −2⋅14 = −24 = −2
Find y-coordinate: Now that we have the x-coordinate of the vertex, we can find the y-coordinate by substituting x=−2 into the original equation.y=(−2)2+4∗(−2)−2y=4−8−2y=−6
Determine vertex point: We have found the x-coordinate and y-coordinate of the vertex. Therefore, the vertex of the parabola is at the point (−2,−6).
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