Write the equation of the parabola that passes through the points (−5,28), (2,0), and (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 (−5,28), (2,0), and (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: We have the points (−5,28), (2,0), and (3,0). The points (2,0) and (3,0) are the x-intercepts of the parabola, so they give us the values of p and q directly.p=2 and q=3.
Write Parabola Equation: Using the values of p and q, we can write the equation of the parabola in the form y=a(x−p)(x−q). Substituting p=2 and q=3, we get y=a(x−2)(x−3).
Find Value of a: Now we need to find the value of a. We can use the point (−5,28) to do this. Substituting x=−5 and y=28 into the equation y=a(x−2)(x−3), we get:28=a(−5−2)(−5−3).
Solve for a: Solving the equation 28=a(−7)(−8), we find:28=a(56).To find a, we divide both sides by 56:a=5628.
Final Equation: Simplifying the fraction5628, we get:a=21.
Final Equation: Simplifying the fraction 5628, we get:a=21.Now that we have found a=21, we can write the final equation of the parabola:y=(21)(x−2)(x−3).
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