Q. A parabola opening up or down has vertex (0,3) and passes through (6,6). Write its equation in vertex form.Simplify any fractions.
Vertex Form Explanation: What is the vertex form of the parabola?The vertex form of a parabola is given by the equation y=a(x−h)2+k, where (h,k) is the vertex of the parabola.
Equation with Vertex: What is the equation of a parabola with a vertex at (0,3)?Since the vertex is (0,3), we substitute h=0 and k=3 into the vertex form equation.y=a(x−0)2+3y=ax2+3
Use Point to Find 'a': Use the point (6,6) to find the value of 'a'.We know the parabola passes through the point (6,6), so we can substitute x=6 and y=6 into the equation to solve for 'a'.6=a(6)2+36=36a+3
Solve for 'a': Solve for 'a'.Subtract 3 from both sides of the equation to isolate the term with 'a'.6−3=36a3=36aDivide both sides by 36 to solve for 'a'.a=363a=121
Final Equation in Vertex Form: Write the final equation of the parabola in vertex form.Now that we have the value of a, we can write the equation of the parabola.y=121(x−0)2+3Simplify the equation.y=121x2+3
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