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4 years ago

The domain of the reltionship (3,4) (5,-1) (-11,2), (9,3) (-7,-1)?

Mathematics

2 answers:

Vedmedyk [2.9K]4 years ago

7 0

Answer:

3,5,-11,9,-7

Step-by-step explanation:

The domain is the x values

IRISSAK [1]4 years ago

4 0

Answer:

3,5,-11,9,-7

Step-by-step explanation:

the domain is all the x values in a data set

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The graph below shows a company's profit f(x), in dollars, depending on the price of pencils x, in dollars, sold by the company.

lutik1710 [3]

Answer:

Step-by-step explanation:

Part A

The x-intercept are the values of the variable "x" for which the value of the function, f(x) is zero (f(x) = 0)

The given parameters are;

The values of the function, f(x) = The company's profit

The values of the independent variable, "x" = The price of erasers

Therefore, at the x-intercept, where the values of the variable "x" are 0 and 8, the profit of the company, (f(x)) is 0 (the company does not make any profit)

2) The maximum value, which is the highest point of the graph with coordinate (4, 270), gives the company's maximum profit, f(x) = $270, and the price of the eraser, x-value, at which the company makes maximum profit which is at the price of an eraser, x = $4

3) The intervals where the function is increasing is 0 ≤ x ≤ 4

At the interval where the function is increasing, the sale price is increasing and the profits are increasing

The intervals where the function is decreasing is 4 ≤ x ≤ 8

At the interval where the function is decreasing, the sale price is increasing and the profits are decreasing

Part B

The appropriate average rate of change of the graph from x = 1 to x = 4 where f(x) = 120 and 270 respectively is given as follows

Rate of change of the graph from x = 1 to x = 4 is (270 -120)/(4 - 1) = 50

The average rate of change of the graph represents that the as the price of the eraser increases by $1.00 the profits increases by $50.00

THIS WAS NOT MY OWN ANSWER, PLEASE LET oeerivona TAKE THE POINTS!!

7 0

3 years ago

The value of a collectible toy is increasing exponentially. The two points on the graph

shtirl [24]

The question is incomplete. Here is the complete question.

Part A

The value of a collectible toy is increasing exponentially. The two points on the graph show the toy's initial value and its value 3 weeks afterward.

Express the toy's value t, in dollars, as a function of time w in weeks after purchase.

Part B

Write an expression to represent the toy's value 10 days after purchase

Answer and Step-by-step explanation: An exponential function is of the form: $y=ab^{x}$

Part A

Translating to the question, the toy's value as a function of time is

$t=ab^{w}$

To determine constants a and b, we use points given by graph.

First, (0,5) to find a:

$5=a.b^{0}$

a = 5

Now, (3,10) to determine b:

$10=5b^{3}$

$b=\sqrt[3]{2}$

b = 1.26

The toy's value as a function of time in weeks is $t=5.(1.26)^{w}$

Part B

Since, the function is in weeks:

1 week = 7 days

w weeks = 10 days

$w = \frac{10}{7}$

Replacing w:

$t=5.(1.26)^{w}$

$t=5.(1.26)^{10/7}$

Expression that represents toy's value after 10 days is $t=5.(1.26)^{10/7}$ .

8 0

3 years ago

Direct Variation: If y = 22, when x=-11, find x when y = 88.

Anon25 [30]

Answer:22

Step-by-step explanation:

8 0

3 years ago

The mean age of 5 women in an office is 23 years old. The mean age of 3 men in an office is 24 years old. What is the mean age (

yulyashka [42]

Answer:

Step-by-step explanation:

Women total age = 5 x 23 = 115

Men total age = 3 x 24 = 72

The mean age of all the people

= (115+72)÷(8)

= 23.375

= 23 (nearest year)

5 0

3 years ago

Please help for number 2 :/

hoa [83]

Answer:

25.4

Step-by-step explanation:

the answer is 25.4

7 0

3 years ago