1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MatroZZZ [7]
3 years ago
11

What are 3 completed examples for functions?

Mathematics
1 answer:
Lyrx [107]3 years ago
3 0
Example 1

Write y = x2 + 4x + 1 using function notation and evaluate the function at x = 3.

Solution

Given, y = x2 + 4x + 1

By applying function notation, we get

f(x) = x2 + 4x + 1

Evaluation:


Substitute x with 3

f (3) = 32 + 4 × 3 + 1 = 9 + 12 + 1 = 22

Example 2

Evaluate the function f(x) = 3(2x+1) when x = 4.

Solution

Plug x = 4 in the function f(x).

f (4) = 3[2(4) + 1]

f (4) = 3[8 + 1]

f (4) = 3 x 9

f (4) = 27

Example 3

Write the function y = 2x2 + 4x – 3 in function notation and find f (2a + 3).

Solution

y = 2x2 + 4x – 3 ⟹ f (x) = 2x2 + 4x – 3


Substitute x with (2a + 3).

f (2a + 3) = 2(2a + 3)2 + 4(2a + 3) – 3

= 2(4a2 + 12a + 9) + 8a + 12 – 3
= 8a2 + 24a + 18 + 8a + 12 – 3
= 8a2 + 32a + 27
You might be interested in
Only answer #3 please
levacccp [35]

Answer:

-2

Step-by-step explanation:

you would go to wear your line crosses you y-axis, which is the vertical one

so it crosses at -2

7 0
3 years ago
Read 2 more answers
A mother is 30 years older than her son. Fifteen years ago the son was 1/3 of
nalin [4]

Let s be the son's age 15 yeasr ago and m the mother's age that year.

s = \dfrac{m}{3}

We also know that:

m = s+30

Plotting vallues:

s = \dfrac{m}{3}\\\\\\3s = s+30\\\\2s = 30\\\\s = 15\\\\m = 45

Remember that they were that age 15 years ago.

So their actual age is 30 and 60.

8 0
3 years ago
Read 2 more answers
Factor by grouping,<br>Factor each completely<br>1) 8x^3 + 10x² + 20x + 25​
Semenov [28]
2x^2(4x+5) + 5(4x+5)
(2x^2+5(4x+5)
6 0
3 years ago
Read 2 more answers
Can anyone help me with this question?
vladimir1956 [14]
278 is the answer because I calculated it
8 0
2 years ago
Determine if the 2 triangles are congruent. <br>A) HL <br>B) SSS <br>C) AAS <br>D) SAS​
Norma-Jean [14]

Answer:

its SAS

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • 3in = Feet I need to understand how to convert this to fractions
    13·2 answers
  • Mr.young has 30 times more pencils than Jack. The whole school has 200 times more pencils than Jack. If Jack has 2 pencils, how
    15·1 answer
  • Subtract the following polynomials, then place the answer in the proper location on the grid. Write your answer in descending po
    13·2 answers
  • What is the pattern of 3,400,000 34,000 blank 3.4 03.4
    7·1 answer
  • I'm Stuck on this,
    7·1 answer
  • Which of the following expressions is a common factor when the expressions x2 – 9 and x2 – 5x + 6 are factored?
    13·1 answer
  • Please help!
    14·1 answer
  • Parallelograms with all right angles<br>​
    8·1 answer
  • Expand (x+b/2a)²<br><img src="https://tex.z-dn.net/?f=%28x%20%2B%20%5Cfrac%7Bb%7D%7B2a%7D%20%29%20%7B%7D%5E%7B2%7D%20" id="TexFo
    15·1 answer
  • 1. Trig Function
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!