A parabola passed through (3,15) and (9,15). Determine the axis of symmetry The x-intercepts of a quadratic relation are -5 and 3 and the second differences are positive.   a) Is the y-value of the vertex a maximum value or a minimum value? b) Is the y-value of the vertex positive or negative? Explain. c) Calculate the x-coordinate of the vertex. 2. Identify the key features of the parabola given.  i) the equation of the axis of symmetry  ii) the coordinates of the vertex  iii) the y-intercept iv) the zeros  v) optimal value

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A:

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A:

Q: t is the equation of this parabola?

A: Given that, A  parabola has a vertex of (3,-2) and a y-intercept of 7.

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Q: A lawn care service has a fixed cost of $125 per day and an additional cost of $8 for each lawn they…

A: Fixed cost=$125 per dayAdditional cost=$8 each lawn