Write the equation of the parabola that passes through the points (−5,0), (1,6), (3,0). Write your answer in the form y=a(x–p)(x–q), where a, p, and q are integers, decimals, or simplified fractions.
Q. Write the equation of the parabola that passes through the points (−5,0), (1,6), (3,0). Write your answer in the form y=a(x–p)(x–q), where a, p, and q are integers, decimals, or simplified fractions.
Identify x-intercepts: Identify the x-intercepts from the given points (−5,0) and (3,0). These points indicate where the parabola crosses the x-axis, so p=−5 and q=3.
Write general form: Write the general form of the parabola using the identified x-intercepts: y=a(x+5)(x−3).
Use point to find 'a': Use the point (1,6) to find the value of 'a'. Substitute x=1 and y=6 into the equation: 6=a(1+5)(1−3).
Simplify and solve: Simplify and solve for a: 6=a(6)(−2), 6=−12a, a=−21.
Substitute 'a' back: Substitute the value of 'a' back into the equation to get the final form of the parabola: y=−21(x+5)(x−3).
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