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Question

A sports store chain estimates weekly sales of soccer balls (in thousands of units) n months after an International Soccer Tournament as a parabolic function. Sales totalled 7,000 units 1 month after the tournament and peaked 2 months after the tournament at 17,000 units.

a. Determine the function that describes soccer ball sales following the International Soccer Tournament.

Answer 1

Three points on fhte parabola

(1, 7000)

(2, 17000)

(3, 7000)

Use these to determine function.