Distributing property because you distribute the 4 to both the x and the -6
The graph of the function

is parabola with branches going down in the negative direction of y-axis.
The vertex of parabola has coordinates:

Then you can conclude that all x are possible, that means that the dimain is

and the maximum value of y is at the vertex, then the range is
![(-\infty,6]](https://tex.z-dn.net/?f=%28-%5Cinfty%2C6%5D)
.The function is increasing for x<-2 and decreasing for x>-2 (since vertex is the maximum point).
When x=0, y=2.
Hence,
<span>The domain is {x|x ≤ –2} - false.
</span>
<span>The range is {y|y ≤ 6} - true.
</span>
<span>The function is increasing over the interval (–∞ , –2) - true.
</span>
<span>The function is decreasing over the interval (−4, ∞) - false.
</span>
<span>The function has a positive y-intercept - true.</span>
Answer:

Step-by-step explanation:

Answer:
The first one
Step-by-step explanation:
Answer:
The constant rate of proportionality is r = 0.2
Step-by-step explanation:
We have an equation in the following format:
y = rx
In which r is the constant rate of proportionality.
To find r, we find a pair of x and y and replace.
8|1.6
This means that when x = 8, y = 1.6. So
y = rx
1.6 = 8r
8r = 1.6
r = 1.6/8
r = 0.2
The constant rate of proportionality is r = 0.2