In f(x) = a(x - p)(x - 9), what does "a" tell us?

Mathematics

1 answer:

ANTONII [103]2 years ago

4 0

Answer:

Step-by-step explanation:

f(x) = a(x-p)(x-9) is the equation of a vertical parabola.

If a>0, the parabola opens upwards.

If a<0, the parabola opens downwards.

Also, the focal length of the parabola is 1/|4a|.

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