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Blizzard [7]
3 years ago
9

INTRODUCTION TO FUNCTION COMMON CORE ALGEBRA II HOMEWORK HELP SOMEONE PLEASE ‼️‼️‼️‼️‼️‼️‼️‼️

Mathematics
1 answer:
umka2103 [35]3 years ago
8 0

Using the concept of function, it is found that:

  • Graphs B, C, D and F are functions.
  • Graphs A and E are not functions.

-----------------------------

  • In a function, one value of the input can be related to only one value of the output.
  • In a graph, it means that for <u>each value of x(horizontal axis), there can only be one respective value of y(vertical axis). </u>That is, if a vertical line is traced at a value of x, it can cross the function only once, that is, there cannot be points aligned vertically.
  • In graphs B, C, D and F, it can be seen that <u>for each x value, there is only one respective y-value</u>, thus, they are functions.
  • In graphs A and E, for <u>values of x,</u> such as x = 3 for both, there are <u>two respective values of y</u>, thus they are not functions.

A similar problem is given at brainly.com/question/12463448

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Brut [27]

Answer:

(f+g)(2)  = 4

(f-g)(4) = 8

(f ÷g)(2) = 7

(f x g)(1) = 0

Step-by-step explanation:

We are given these following functions:

f(x) = 2x + 3

g(x) = x - 1

(f+g)(2)

(f+g)(x) = f(x) + g(x) = 2x + 3 + x - 1 = 3x - 2

At x = 2

(f+g)(2) = 3(2) - 2 = 6 - 2 = 4

Then

(f+g)(2)  = 4

(f-g)(4)

(f-g)(x) = f(x) - g(x) = 2x + 3 - (x - 1) = 2x + 3 - x + 1 = x + 4

At x = 4

(f-g)(4) = 4 + 4 = 8

Then

(f-g)(4) = 8

(f ÷g)(2)

(f \div g)(x) = \frac{f(x)}{g(x)} = \frac{2x+3}{x-1}

At x = 2

(f \div g)(2) = \frac{7}{1} = 7

Then

(f ÷g)(2) = 7

(f x g)(1)

(f \times g)(x) = f(x)g(x) = (2x+3)(x-1) = 2x^2 -2x + 3x - 3 = 2x^2 + x - 3

Then

(f \times g)(1) = 2(1)^2 + 1 - 3 = 3 + 1 - 3 = 0

So

(f x g)(1) = 0

4 0
3 years ago
Help me please fvfbvtne d f vrgvbv​
Ivenika [448]

Answer:

<h2>Height (h) =54.6mm</h2>

Step-by-step explanation:

Given :

Base (b) = 7.7mm

Area (a) = 210.21mm^2

Height (h) = ?

Area = \frac{base\times height}{2} \\\\210.21= \frac{7.7\times h}{2} \\\\210.21\times2 = 7.7\times h\\\\420.42 = 7.7 h\\\\\frac{420.42}{7.7}=\frac{7.7h}{7.7}\\\\54.6 =h\\\\h=54.6

8 0
3 years ago
Read 2 more answers
Two fair dice are rolled<br> What is the SAMPLE SPACE of the possible outcomes?<br> SHOW YOUR WORK!
serg [7]

ANSWER

See sample space below

EXPLANATION

The sample space refers to the set of all the possible outcomes.

When two fair dice are rolled, the possible by outcomes are:

{(1,1),(1,2),(1,3),(1,4),(1,5),(1,6),(2,1),(2,2),(2,3),(2,4),(2,5),(2,6),(3,1),(3,2),(3,3),(3,4),(3,5),(3,6),(4,1),(4,2),(4,3),(4,4),(4,5),(4,6),(5,1),(5,2),(5,3),(5,4),(5,5),(5,6),(6,1),(6,2),(6,3),(6,4),(6,5),(6,6)}

The total number of outcomes is 36.

3 0
3 years ago
1-6. Indicate whether each table or graph represents a proportional
Pie

Answer:

Step-by-step explanation:

Proportional relationship means,

x ∝ y

x = ky

\frac{x}{y}=k where 'k' is the proportionality constant.

From table (1),

\frac{1}{5}=\frac{2}{9}\neq  \text{Constant}

Therefore, relationship is not proportional.

From table (2),

\frac{1}{6}=\frac{3}{18}=\text{constant}

True.

So the relationship will be proportional.

From table (3),

\frac{\text{hours}}{\text{Miles}}= \frac{2}{110}=\frac{5}{175}=\frac{1}{55}

Which is constant.

Therefore, relationship will be proportional.

From table (4),

\frac{\text{Hours}}{\text{Paid}}=\frac{3}{29.25}=\frac{5}{48.75}=0.103

Which is constant for every term.

Therefore, relationship will be proportional.

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2 years ago
Help me plz I'm doing a test and I need help lol
My name is Ann [436]

Answer:

BC = BA

Step-by-step explanation:

6 0
2 years ago
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