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3 years ago

Does the graph represent a function?

Mathematics

2 answers:

Pavlova-9 [17]3 years ago

6 0

The graph represents a function.
You can tell if a graph is function or not by using the vertical line test.
If the line only passes one point of the y-axe, it is a function. But when the graph passes more than two points, it is not a function.

UNO [17]3 years ago

3 0

Answer:

Yes, the graph represent a function.

Step-by-step explanation:

We have been given a graph. We are asked to determine whether the graph represent a function or not.

To check a graph is function or not, we use vertical line test. We draw a vertical line on graph and see if it crosses the graph more than once, then the graph is not function.

If vertical line crosses a graph only once, then the graph is a function.

Since our given graph is a horizontal line, so each vertical line will intersect the graph exactly at one place, therefore, the graph is a function.

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What is 32 over 48 simplified and what numbers?

Cloud [144]

32/48 simplified by 16 that equals 2/3

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3 years ago

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Members of a senior class held a car wash to raise funds for their senior prom. They charged $3 to wash a car and $5 to wash a p

pashok25 [27]

Answer:the number of cars that were washed is 50

Step-by-step explanation:

Let x represent the number of cars that members of a senior class.

Let y represent the number of pick-up truck or a sport utility vehicle that members of a senior class.

They charged $3 to wash a car and $5 to wash a pick-up truck or a sport utility vehicle and they earned a total of $275. This means that

3x + 5y = 275 - - - - - - - - -- - -1

They washed a total of 75 vehicles. This means that

x + y = 75

Substituting x = 75 - y into equation 1, it becomes

3(75 - y) + 5y = 275

225 - 3y + 5y = 275

- 3y + 5y = 275 - 225

2y = 50

y = 50/2 = 25

Substituting y = 25 into x = 75 - y, it becomes

x = 75 - 25 = 50

3 0

3 years ago

This graph shows how the length of Karen's essay depends on the number of hours she spends writing this week.

Gre4nikov [31]

Answer: $0.8$ pages per hour.

Step-by-step explanation:

For this exercise it is important to know that, by definition, Direct variation equations have the following form:

$y=kx$

Where "k" is the constant of variation.

Therefore, it is a straight line that passes through the origin.

In this case, given the graph attached in the exercise, you can follow these steps in order to find the constant of variation:

Step 1: You need to choose any point on the line. Let's choose the point (5,4).

Step 2: Now you must ubstitute the coordinates of that point into $y=kx$ . Then:

$4=k(5)$

Step 3: Finally, you must solve for the Constant of variation "k", in order to find its value. Therefore, you get that this is:

$k=\frac{4}{5}\\\\k=0.8$

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3 years ago

This is a variation acitivity:

sergey [27]

$\bf \qquad \qquad \textit{direct proportional joint variation} \\\\ \textit{\underline{y} varies jointly with \underline{x} and \underline{z}}\qquad \qquad y=kxz\impliedby \begin{array}{llll} k=constant\ of\\ \qquad variation \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}$

$\bf \stackrel{\textit{\underline{I} varies jointly with \underline{P} and \underline{t}}}{I=kPt} \\\\\\ \textit{we also know that } \begin{cases} P=2000\\ t=4\\ I=320 \end{cases}\implies 320=k(2000)(4)\implies \cfrac{320}{(2000)(4)} \\\\\\ 0.04=k\qquad therefore\qquad \boxed{I=0.04Pt} \\\\\\ \textit{if P=5000 and t=7, what is \underline{I}?}\qquad I=0.04(5000)(7)\implies I=1400$

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3 years ago

Mr gerhring has a 3/4 pound bag of flour to use for 6 cakes. how much flour is used for EACH cake?? I need work plz and thank u.

VMariaS [17]

The answer is B. You can find this by turning 3/4 into a decimal, which is .75. You can then divide .75 by 6 to get 0.125 (which is the decimal form of 1/8).

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4 years ago