Leigh is renting a moving van. The function C(d)=0.12d+25
is used to relate the cost C in dollars of the rental after Leigh uses the van for d miles.
What is the interpretation of the slope for this function?
(1 point)
Responses
The additional cost is $0.12 for each additional mile the van is driven.
The additional cost is $0.12 for each additional mile the van is driven.
The initial cost of the moving van is $0.12.
The initial cost of the moving van is $0.12.
The additional cost is $25 for each additional mile the van is driven.
The additional cost is $25 for each additional mile the van is driven.
The initial cost of the moving van is $25.
The initial cost of the moving van is $25.
9 answers
The additional cost is $0.12 for each additional mile the van is driven.
Austin works as an electrician. If a job requires Austin to work on weekends, the function C(t)=54t+75
represents the customer's cost, C, in dollars of working t hours on the job.
What is the interpretation of the y-intercept?
(1 point)
Responses
Austin charges $54 for each hour worked on a weekend job.
Austin charges $54 for each hour worked on a weekend job.
Austin charges the customer $75 before starting on a weekend job.
Austin charges the customer $75 before starting on a weekend job.
Austin charges $75 for each hour worked on a weekend job.
Austin charges $75 for each hour worked on a weekend job.
Austin charges the customer $54 before starting on a weekend job.
Austin charges the customer $54 before starting on a weekend job.
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represents the customer's cost, C, in dollars of working t hours on the job.
What is the interpretation of the y-intercept?
(1 point)
Responses
Austin charges $54 for each hour worked on a weekend job.
Austin charges $54 for each hour worked on a weekend job.
Austin charges the customer $75 before starting on a weekend job.
Austin charges the customer $75 before starting on a weekend job.
Austin charges $75 for each hour worked on a weekend job.
Austin charges $75 for each hour worked on a weekend job.
Austin charges the customer $54 before starting on a weekend job.
Austin charges the customer $54 before starting on a weekend job.
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Austin charges the customer $75 before starting on a weekend job.
A plan starts to descend to prepare for landing. The height of the plane, h, in meters can be represented as the function h(t)=−95t+3800
where t is the number of minutes after the plane starts its descent. What is the meaning of the 3800 in the equation of this function?(1 point)
Responses
The height of the plane is 3800 meters when it lands.
The height of the plane is 3800 meters when it lands.
The height of the plane increases by 3800 meters each minute.
The height of the plane increases by 3800 meters each minute.
The plane descends 3800 meters in one hour.
The plane descends 3800 meters in one hour.
The height of the plane is 3800 meters when it begins to descend.
where t is the number of minutes after the plane starts its descent. What is the meaning of the 3800 in the equation of this function?(1 point)
Responses
The height of the plane is 3800 meters when it lands.
The height of the plane is 3800 meters when it lands.
The height of the plane increases by 3800 meters each minute.
The height of the plane increases by 3800 meters each minute.
The plane descends 3800 meters in one hour.
The plane descends 3800 meters in one hour.
The height of the plane is 3800 meters when it begins to descend.
The height of the plane is 3800 meters when it begins to descend.
The first step of a staircase that leads to an outdoor deck is above a concrete slab. The height, h, in centimeters of the n step of the staircase above the ground can be represented by the function h(n)=25n+3
Which of the following is a correct interpretation of the function?(1 point)
Responses
The concrete slab is 25cm tall.
The concrete slab is 25cm tall.
The first step is 25cm tall, and the subsequent steps are 3cm tall.
The first step is 25cm tall, and the subsequent steps are 3cm tall.
The height of each step is 3cm.
The height of each step is 3cm.
The concrete slab is 3cm tall.
Which of the following is a correct interpretation of the function?(1 point)
Responses
The concrete slab is 25cm tall.
The concrete slab is 25cm tall.
The first step is 25cm tall, and the subsequent steps are 3cm tall.
The first step is 25cm tall, and the subsequent steps are 3cm tall.
The height of each step is 3cm.
The height of each step is 3cm.
The concrete slab is 3cm tall.
The first step is 25cm tall, and the subsequent steps are 3cm tall.
A scuba diver is moving underwater when it decides to dive deeper into the water. The depth, D, in meters of the scuba diver t minutes after the dive is represented by the function D(t)=70+45t
What is the depth of the scuba diver when it starts to dive deeper?(1 point)
Responses
25 meters
25 meters
115 meters
115 meters
70 meters
70 meters
45 meters
What is the depth of the scuba diver when it starts to dive deeper?(1 point)
Responses
25 meters
25 meters
115 meters
115 meters
70 meters
70 meters
45 meters
The depth of the scuba diver when it starts to dive deeper is 70 meters.
1 answer