what in the hell grade are u in
the function f has a domain of {1,3,5,7} and a range of {2,4,6}. could f be represented by {(1,2),(3,4),(5,6),(7,2)}? justify yo
maria [59]
Yes, f could be represented by this relation. This is because for a relation to be a function, every x value should have one and only one y value; when you plot the points, the graph must pass the vertical line test, which states that for a graph to be a function, a vertical line can only pass through the graph once in any part of the graph.
Hope this helps!
Answer:
D
Step-by-step explanation:
A function is where each input (here, the input is x) corresponds to exactly one output (here, the output is y). In other words, if a function is graphed, we should be able to draw a vertical line through every single part of it that will intersect it at only one place.
Let's examine each choice.
(A) Well, if we draw a vertical line through the graph, it will obviously intersect the entire line - which is an infinite number of intersections, so this is not a function.
(B) If we draw a vertical line through the portion of the graph that lies near the positive x-axis, we note that it will intersect twice, so this is not a function.
(C) If we strategically draw a vertical line through the y-axis, we see it will intersect two times, so this is not a function.
(D) We can draw a vertical line through any portion of this graph and know that it will only intersect once.
Therefore, the answer is D.
Answer:
3x+5=3x+5
they are both the same line
Answer:
A. The domain is (1,∞), and the range is (-7,∞)
Step-by-step explanation:
Well lets graph it first,
Look at the image below ↓
By looking at the image we move it 3 units right and 3 units down.
Then it will be located at the point (1,-7).
Meaning for the domain it starts at 1 and goes on for infinity.
And For the range it starts down at -7 and goes down for infinity.
<em>Thus,</em>
<em>the correct answer is choice A.</em>
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<em>Hope this helps :)</em>