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marin [14]
3 years ago
9

For what value of c is the relation a function?

Mathematics
2 answers:
nalin [4]3 years ago
6 0

Answer: c\ \epsilon\ \mathbb{R}\text{ where }c\neq 2,12,-1,0

Step-by-step explanation:

We know that a function is a special kind of relation between two variables say x and y such that each input corresponds to exactly one output.

In the given relation , we need only one output corresponds to each input.

Then to fulfill the condition to become a function, we can take any value for c belongs to the set of real numbers other than the values which the relation already has taken as input .

Then c\ \epsilon\ \mathbb{R}\text{ where }c\neq 2,12,-1,0

inysia [295]3 years ago
5 0
For a relation to be a function, it cannot have any repeating x values.

therefore, c ,  can be ANYTHING BUT { 2,12,-1,and 0}...because if it was any of those numbers, u would have repeating x values
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3 years ago
A function is described by the equation f(x) = 2x + 3. The replacement set for the independent variable is (2,4,6,8). Which set
Anna11 [10]
<h3>Answer:  {7, 11, 15, 19}</h3>

Write the values in the order shown. The curly braces indicate a set.

=================================================

Explanation:

The replacement set for the independent variable is {2,4,6,8}

This means we'll plug x = 2, x = 4, x = 6, and x = 8 into the function one at a time to find the corresponding y = f(x) value.

---------

Plug in x = 2 to find that,

f(x) = 2x+3

f(2) = 2*2+3 ... replace every x with 2

f(2) = 4+3

f(2) = 7

If the input is x = 2, then the output is y = 7. Therefore, the '2' in the domain corresponds to '7' in the range.

If you repeat those steps for x = 4, then you should find that f(4) = 11. Do the same thing for x = 6 and it should lead to y = 15. The last value in the range is y = 19 which corresponds to x = 8.

In short, the domain {2,4,6,8} corresponds to the range {7, 11, 15, 19}

Usually with sets, order doesn't matter. However, in this case, the order is important because we need to match the 2 with the 7, the 4 with the 11, etc.

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3 years ago
FIRST PERSON TO ANSWER WILL GET BRAINLEST
wariber [46]

Using translation concepts, the y-coordinate of R' will be of -10.

<h3>What is a translation?</h3>

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction either in it’s definition or in it’s domain. Examples are shift left/right or bottom/up, vertical or horizontal stretching or compression, and reflections over the x-axis or the y-axis.

For this problem, the rule is given by:

(x,y) -> (x + 4, y - 7)

y -> y - 7 means that for the image, the 7 is subtracted from the y-coordinate of the pre-image. The y-coordinate of R is of -3, -3 -7 = -10, hence the y-coordinate of R' will be of -10.

More can be learned about translation concepts at brainly.com/question/28393734

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2 years ago
If a hypothesis is not rejected at the 0.10 level of significance, it: a. may be rejected at the 0.05 level. b. must be rejected
mariarad [96]

Answer:

Option D - Will not be rejected at the 0.05 level.

Step-by-step explanation:

The significance level, which is denoted as "α", is a measure of the strength of the evidence that must be present in a sample before we can reject the null hypothesis and conclude that the effect is statistically significant. Now, this significance level must be determined before conducting an experiment.

Now, in the context of this question, the significance level is the probability of rejecting the null hypothesis when it is true. For example, a significance level of 0.05 means a 5% risk of concluding that a difference exists when there is no actual difference. Now, lower significance levels will indicate that we require stronger evidence before we can reject the null hypothesis.

Thus, if we don't reject at α = 0.1,we obviously will not reject at higher values.

Thus, looking at the options, we will not reject at 0.05 significance level.

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