Q. A parabola opening up or down has vertex (0,0) and passes through (6,−3). Write its equation in vertex form.Simplify any fractions.
Identify Vertex Form: Identify the vertex form of a parabola.Vertex form: y=a(x−h)2+kHere, h=0 and k=0, so the equation simplifies to y=ax2.
Substitute Point: Substitute the point (6, −3) into the equation to find a.Using y=ax2 and substituting x=6 and y=−3:−3=a(6)2−3=36aa=−3/36a=−1/12
Write Final Equation: Write the final equation using the value of a.Substitute a=−1/12 back into the vertex form:y=−121x2This is the equation of the parabola in vertex form.
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