Which equation, when graphed, has x -intercepts at 8 comma 0 and negative 2 comma 0 and a y -intercept at 0 comma negative 48 ?

The x-intercepts at 8 and −2 mean the equation must have factors (x − 8) and (x + 2). Choices A and B have those factors. Using the y-intercept, substitute x = 0: choice A gives 3(−8)(2) = −48, while choice B gives −3(8)(−2) = 48. Therefore, the equation is f(x) = 3(x − 8)(x + 2), choice A.

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