Write the equation of the parabola that passes through the points (−6,−15), (−1,0), and (−7,0). 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 (−6,−15), (−1,0), and (−7,0). 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.The x-intercepts are the x-values of the points where the y-values are zero.x-intercepts: −1, −7
Write equation in form: Use the x-intercepts to write the equation in the form y=a(x−p)(x−q).p=−1q=−7y=a(x−(−1))(x−(−7))y=a(x+1)(x+7)
Find value of 'a': Use the third point (−6,−15) to find the value of a. Substitute x=−6 and y=−15 into the equation y=a(x+1)(x+7). −15=a(−6+1)(−6+7)−15=a(−5)(1)−15=−5aa=−5−15a=3
Write final parabola equation: Write the final equation of the parabola using the value of a and the x-intercepts.a=3p=−1q=−7y=a(x−p)(x−q)y=3(x+1)(x+7)
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