Rotating the graph of with
counterclockwise by
eliminates the
term, where
Plugging in, we have
since
Solving, we have
The graph of which function is decreasing over the interval (–4, ∞)?
2 answers:
This can be solved by the method of elimination.
We have been given that the function should decrease over (-4,∞)
So, since its between -4 and ∞ , we can eliminate option A and C. This is because options A and C are actually increasing over (-4,∞) and not decreasing.
So, this leaves us with options B and D. Next we find the vertex of the two functions. The vertex of Option B, that is lies at the point (-4,4) and decreases with x over the interval (-4,∞).
Whereas the option D, has the vertex at (4,4) and hence the interval is not between -4 and infinite.
Hence Option B, is the answer asthe function is decreasing over the interval (–4, ∞)
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The system of equations has one solution (-1, 1)
<h3>Graph of system of linear equations </h3>From the question, we are to graph the given system of equations.
The given system of equation is
y + 2x = −1
3y − x = 4
The graph of the given system of equations is shown below.
From the graph, we can observe that the solution to the given system of equation is given by two lines that intersect at the point (-1, 1).
Hence, the system of equations has one solution (-1, 1)
Learn more on Graph of linear equations here: brainly.com/question/14323743
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