Answer:
1) The slope of the function
is
and the slope of the function
is
.
2) The negative slope of the function
shows that it is the line is increasing and the slope
of the function
shows that the line will always have the same y-coordinate.
3) The slope of the function is
is greater than the slope of the function
.
Step-by-step explanation:
For this exercise you need to know that the slope of any horizontal line is zero (
)
The slope of a line can be found with the following formula:
![m=\frac{y_2-y_1}{x_2-x_1}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7By_2-y_1%7D%7Bx_2-x_1%7D)
You can observe in the graph of the function
given in the exercise, that this is an horizontal line. Then, you can conclude that its slope is:
![m=0](https://tex.z-dn.net/?f=m%3D0)
The steps to find the slope of the function
shown in the table attached, are the following:
- Choose two points, from the table:
and ![(4,-1)](https://tex.z-dn.net/?f=%284%2C-1%29)
- You can say that:
![y_2=-1\\y_1=3\\\\x_2=4\\x_1=0](https://tex.z-dn.net/?f=y_2%3D-1%5C%5Cy_1%3D3%5C%5C%5C%5Cx_2%3D4%5C%5Cx_1%3D0)
- Substitute values into the formula
:
![m=\frac{-1-3}{4-0}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B-1-3%7D%7B4-0%7D)
- Finally, evaluating, you get:
![m=\frac{-4}{4}\\\\m=-1](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B-4%7D%7B4%7D%5C%5C%5C%5Cm%3D-1)
Therefore:
1) The slope of the function
is
and the slope of the function
is
.
2) The negative slope of the function
shows that it is the line is increasing and the slope
of the function
shows that the line will always have the same y-coordinate.
3) The slope of the function is
is greater than the slope of the function
.