I think that is commutative property.<span />
Answer:
Step-by-step explanation:
A function is one-to-one if it passes the horizontal line test. This is the case if a horizontal line intersects the graph in only one place.
The graph of f(x) = x^2 - 5 is that of a parabola that opens upward. There are several possibilities here:
1. The horizontal line intersects the parabolic graph twice on the interval (-infinity,+infinity). Therefore this function is not one-to-one on this interval
(-infinity,+infinity).
2. If we define the domain as [0,+infinity), a horizontal line will intersect this parabolic graph only once. Therefore this function is one-to-one on [0,+infinity).
Answer:
consistent and dependent: x: -4 +2y
Step-by-step explanation:
x – 2y = −4
–2x + 4y = 8
Multiply the first equation by 2
2(x – 2y = −4 )
2x -4y = -8
Add this to the second equation
2x – 4y = −8
–2x + 4y = 8
----------------------
0 = 0
This is always true
There are infinite solutions. They equations are consistent and dependent
x= -4+2y
