Answer:
you got it kinda just take away the shaded part for the angle <edf
Step-by-step explanation:
Given:
The graph of a function.
To find:
The domain and range of the given function.
Solution:
Domain: It is the set of input values.
Range: It is the set of output values.
From the given graph, it is clear that the function is defined for all real values of x because it is a downwards parabola. So, domain is the function is the set of all real number.
![Domain=\{x|x\in R\}](https://tex.z-dn.net/?f=Domain%3D%5C%7Bx%7Cx%5Cin%20R%5C%7D)
![Domain=(-\infty,\infty)](https://tex.z-dn.net/?f=Domain%3D%28-%5Cinfty%2C%5Cinfty%29)
The function is maximum at point (0,7). So, the maximum value of the function is 7. So, the range of the function is the set of all real numbers less than or equal to 7.
![Range=-\infty](https://tex.z-dn.net/?f=Range%3D-%5Cinfty%3Cy%5Cleq%207)
![Range=(-\infty,7]](https://tex.z-dn.net/?f=Range%3D%28-%5Cinfty%2C7%5D)
Therefore, the domain of the function is
and the range of the function is
.
The perimeter is 6x + 12, and a model example is attached.
All three sides of an equilateral triangle are the same, so multiply the side length by 3 to find the perimeter.
3(2x + 4)
Now distribute the 3.
3 * 2x + 3 * 4
6x + 12