Algebra 1 | Unit 6 | Lesson 7: Building Quadratic Functions to Describe Situations (Part 3) | Practice Problems

• At $2 per coffee mug, the revenue will be $196.

• The revenue will be more than $700 if the price is between $4 and $14.

• The school will earn about $1,000 if it sells the mugs for $10 each.

• The school expects to sell 160 mugs if the price is $5 each.

• The school will lose money if it sells the mugs for more than $10 each.

A rock is dropped from a bridge over a river. Which graph could represent the distance fallen, in feet, as a function of time in seconds? Description:

A line on a graph, origin O, with grid. Horizontal axis, time, seconds, scale 0 to 8, by 1’s. Vertical axis, distance fallen, feet, scale 0 to 200, by 20’s. A line passes through the origin and the point 2 comma 96.

Caption: Graph A Description:

A line on a graph, origin O, with grid. Horizontal axis, time, seconds, scale 0 to 8, by 1’s. Vertical axis, distance fallen, feet, scale 0 to 200, by 20’s. A line passes through the point 0 comma 180 and 2 comma 84.

Caption: Graph B Description:

A curve on a graph, origin O, with grid. Horizontal axis, time, seconds, scale 0 to 8, by 1’s. Vertical axis, distance fallen, feet, scale 0 to 200, by 20’s. A curve passes through the origin and the point 2 comma 64.

Caption: Graph C Description:

A curve on a graph, origin O, with grid. Horizontal axis, time, seconds, scale 0 to 8, by 1’s. Vertical axis, distance fallen, feet, scale 0 to 200, by 20’s. A curve passes through the point 0 comma 180 and 2 comma 116.

Caption: Graph D

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• The bacteria population 3 days before it was first measured was 800,000.

• The population was more than 1,000 one week before it was first measured.

• The population was more than 1,000,000 one week after it was first measured.

• The bacteria population 4 days before it was first measured was 6,250.