The equation of the trend line shown is = − 20/9 + 900. Use the trend line to predict the number of minutes it will take Mrs. Th
1 answer:
We want to use a linear equation to predict the time that it would take to read 900 pages.
The solution is: Mrs. Thompson's class will need 405 minutes to complete the 900 pages.
<em>Now let's see how we got the solution:</em>
Sadly, you didn't write the variables in the equation, so I will assume that the linear equation is:
Where:
- y is the number of pages left.
- x is the time in minutes.
To find <u>the time it would take to read the 900 pages, we need to find the value of x such that y = 0</u>, this means that we need to solve:
The solution will be given by:
This means that Mrs. Thompson's class will need 405 minutes to complete the 900 pages.
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The graph is continuous.A viable solution is (10, 50) at the function t = c + 40.
The complete question is given below:-
The temperature, t, in degrees Fahrenheit, can be found by counting the number of cricket chirps, c, heard in 14 seconds and then adding 40. The equation t = c + 40 models the relationship between the temperature and the number of cricket chirps. What is true about the graph that represents this real-world scenario? Check all that apply.
<h3>What is a graph?</h3>A graph is the representation of the data on the vertical and horizontal coordinates so we can see the trend of the data.
The graph is continuous.
A viable solution is (10, 50).
t = c + 40
The given equation is
t = c + 40
This equation models the relationship between the temperature and the number of cricket chirps.
Where is the temperature in degrees Fahrenheit and is the number of cricket chirps heard in 14 seconds?
According to the problem, the temperature can be found by counting the number of cricket chirps heard in 14 seconds and then adding 40.
Now, the choices to this question are
The graph is continuous.
All values of t must be positive.
A viable solution is (–2, 38).
A viable solution is (0.5, 40.5).
A viable solution is (10, 50).
The graph of the given equation is attached, it shows the linear relationship between both variables.
Notice that the graph is continuous, it doesn't have any restriction, nor "emptiness" at certain values.
Observe that the remaining choices are all solutions to the equation, but not all of them are viable because the number of cricket chirps must be positive and integer because we can't hear the sound of 0.5 cricket.
Therefore, the last choice is viable (10, 50).
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