Quadratic Word Problems

What is this problem asking you to find?

An object in launched directly upward and its height is represented by the equation where t is seconds and s(t) is height.

s(t) = –16t² + 64t + 80.

How long does it take to reach the maximum height?

• The X part of the vertex

• The y part of the vertex

• The X-Intercepts

• The Y- Intercept

An object in launched directly upward and its height is represented by the equation where t is seconds and s(t) is height.

s(t) = –16t² + 64t + 80.

How long does it take to reach the maximum height?

• 2 seconds

• 144 feet

• 64 feet

• 16 seconds

This question is asking you to find what?

The path of a person's jump off a diving board follows the path of this equation: h(t) = -8t² +16t + 24? t represents time and h(t) represents height. How long does it take them to reach the water?

• The x part of the vertex

• the y part of the vertex

• the x-intercept

• the y intercept

The path of a person's jump off a diving board follows the path of this equation: h(t) = -8t² +16t + 24? t represents time and h(t) represents height. How long does it take them to reach the water?

• -1 seconds

• 8 seconds

• 3 seconds

• 4 seconds

This question is asking you to find what?

The profit from selling local ballet tickets depends on the ticket price. Using past receipts, we find that the profit can be modeled by the function p= -15x² +600x +60 , where x is the price of each ticket. What is the maximum profit you can make from selling tickets?

• The y part of the vertex

• the x part of the vertex

• the x-intercepts

• the y-intercepts

The profit from selling local ballet tickets depends on the ticket price. Using past receipts, we find that the profit can be modeled by the function p= -15x² +600x +60 , where x is the price of each ticket. What is the maximum profit you can make from selling tickets?

• $6060

• $20

• $600

• $10,250