Using number 5 and the axis of symmetry, find the vertex. y=3x^2-12x+5

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?