Answer:
For 124 chirps per minute the temperature is 68 ºF.
For 68 chirps per minute the temperature is 54 ºF.
Step-by-step explanation:
Linear functions are those whose graph is a straight line. A linear function has the following form
b is the constant term or the y intercept. It is the value of the dependent variable when x = 0.
m is the coefficient of the independent variable. It is also known as the slope and gives the rate of change of the dependent variable.
We know that
- At 104 chirps per minute, the temperature is 63 ºF.
- At 176 chirps per minute, the temperature is 81 ºF.
This information can be converted to Cartesian coordinates (x, y). Where x = the number of chirps per minute and y = the temperature in ºF.
To find a linear function that let us find the outside temperature from how fast crickets chirp we must:
Solving for b
Therefore, the linear function is
Now, using this linear function we can know the temperature when we know the chirps per minute:
For 124 chirps per minute the temperature is:
For 68 chirps per minute the temperature is:
Answer:
domain is the x values and range is the y values.
Step-by-step explanation:
depending on what type of calculator you use I'm not sure if I can help on that but on the ti 84 calculator hit the "y=" button (it's on the very top row of buttons) and type in your equation (to input the x hit the button directly underneath the button labeled "MODE" it should have look like "X,T,o,n") make sure to put the entire equation in one row if you have 2 equations make sure to put them in seperate rows. and dont put y= in when you type the equation just start typing it. and when all that's done hit the graph button and you should be able to see the graphed equation. or hit the blue button labeled "2nd" then hit the graph button and it will show you the domain and range and all the ordered pairs for your function.
Answer:
80 hope this helps!
Step-by-step explanation:
<h3><u>The value of y is -2.5</u></h3><h3><u>The value of x is -2.</u></h3>
x - 8y = 18
-16x + 16y = -8
We can multiply each term in the first equation by 2 to better assist this elimination.
2x - 16y = 36
Now, we can use elimination.
Add equations together.
-14x = 28
Divide both sides by -14
x = -2
Now that we have a value for x, we can solve for y.
-2 - 8y = 18
Add 2 to both sides.
-8y = 20
Divide both sides by -8
y = -2.5