All categories

3 years ago

Determine whether the relation represents a function. State the domain and range of the relation.

Mathematics

1 answer:

zaharov [31]3 years ago

5 0

Answer:

It is a function
Domain: {-4, -2, 1, 5}
Range: {-9, -7, -4, 5}

Step-by-step explanation:

A function is defined so that for each input (known as the domain), there is no more than one output (known as the range).

You might be interested in

Compute the total and annual returns on the following investment. Twenty years after purchasing shares in a mutual fund for $63

lesya [120]

Answer:

76.2% total return
2.87% annual return

Step-by-step explanation:

The total return is the rate of increase over the whole period:

% change = (11100/6300 -1) × 100% = 76.2%

The annual return is the rate of return that gives this growth over 20 years:

(1 +r)^20 = 1 +76.2%

r = 1.762^(1/20) -1 ≈ 2.87%

The total return is about 76.2%; the annual return is about 2.87%.

7 0

3 years ago

Katie bought 4 sweaters that each cost the same amount and 1 skirt that cost $20. The items she bought cost a total of $160 befo

marissa [1.9K]

Each sweater is $35
B/c in total it was $160
And we know that the skirt is $20
So we do 160-20 which is equal to 140
There are 4 sweaters so 140 divided by 4 which is

$35. !!!! Yayayayay

8 0

3 years ago

What is the word phrase for 2x + 6

scoray [572]

X multiplied by two plus six

6 0

3 years ago

Select the correct answer from each drop-down menu. The graphs below show the number of faulty products, y, produced by a compan

BARSIC [14]

Answer:

whats the answers available?

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

What is the axis of symmetry for the graph of y – 4x = 7 – x2

eimsori [14]

we know that

The equation in vertex form of a vertical parabola is equal to

$y=a(x-h)^{2}+k$

where

(h,k) is the vertex of the parabola

and the axis of symmetry is equal to the x-coordinate of the vertex

$x=h$ -----> equation of the axis of symmetry

In this problem we have

$y-4x=7-x^{2}$

Convert to vertex form

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$y-7=-x^{2}+4x$

$y-7=-(x^{2}-4x)$

Complete the square. Remember to balance the equation by adding the same constants to each side

$y-7-4=-(x^{2}-4x+4)$

$y-11=-(x^{2}-4x+4)$

Rewrite as perfect squares

$y-11=-(x-2)^{2}$

$y=-(x-2)^{2}+11$

the vertex is the point $(2,11)$

therefore

<u>the answer is</u>

The axis of symmetry is

$x=2$

see the attached figure to better understand the problem

5 0

4 years ago

Read 2 more answers