Question 7 (4 points) The parabola is in intercept form.
y = 1/3 (x-3)(x+9)
The x-intercepts are x=
and x=
The vertex is
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Abarbecue sold 26 hamburgers and hot dogs. hamburgers sell for $3.50 each and hot dogs sell for $2.00 each. if the barbecue made $70 in sales, determine and state the number of hot dogs sold.

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x

Percent increase and decrease. original number: 45 new number: 18