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sasho [114]
3 years ago
6

to determine whether a graph is also a function, Shayla declares that the y-axis is a vertical line and counts the number of tim

es the graph intersects the y-axis. If the graph has exactly one y-intercept, shayla concludes that the graph shows a function. In all other cases, she declares that it is not a function. Is she applying the vertical line test correctly

Mathematics
2 answers:
Delvig [45]3 years ago
8 0

Answer:

Shayla is not applying the vertical line test correctly.

Step-by-step explanation:

The vertical line test is useful to determine whether the provided curve is a graph of function or not.

Vertical line test: If we draw a vertical line anywhere on xy plane and the vertical line intersect the graph more than once, then the graph is not a function.

Consider the figure 1:

The vertical lines intersect the graph exactly at one spot. it doesn't matter where we drop the vertical line.

Now consider the figure 2:

Here, the graph has exactly one y-intercept, but it doesn't follow the vertical line test as the graph hits the vertical line in two spots.

Therefore, she is not applying the vertical line test correctly.

pickupchik [31]3 years ago
5 0
Shayla is not applying the vertical line test correctly because it may be a specific function that only intersects the y-axis once but may intercept other values of x multiple times, in order to correctly apply the vertical line test to determine if a graph shows a function or not you must test for multiple points at all x-values of a graph.
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Step-by-step explanation:

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Step-by-step explanation:

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1 year ago
Sasha performs an experiment. She chooses one marble from each of three sacks. The first sack has black (B) and white (W) marble
Paladinen [302]

Answer:

Option D is correct

Step-by-step explanation:

From the question, we have:

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Required

The tree diagram

The selection process is as follows:

Sack\ 1: B, W

Sack\ 1\ and\ Sack\ 2: B (G,Y); W(G,Y) -- i.e. we write sack 2 as a subset of 1

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<em>The only tree diagram that illustrates this is: option D</em>

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3 years ago
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guapka [62]

Answer:

B.

R (2,4)

soln

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radius (r)=5units

so

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2 2

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90

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120 - (120/4)

120 - 30 = 90

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3 years ago
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