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saul85 [17]
3 years ago
11

Does this graph represent a function? Why or why not?

Mathematics
2 answers:
sashaice [31]3 years ago
8 0

Answer:

B)...yes, because it passes the vertical line test.

Step-by-step explanation:


Maslowich3 years ago
3 0

This graph represents a function because it passes the vertical line test (option B)

<h3>Further explanation</h3>

Function is a relation which each member of the domain is mapped onto exactly one member of the codomain.

There are many types of functions in mathematics such as :

  • <em>Linear Function → f(x) = ax + b</em>
  • <em>Quadratic Function → f(x) = ax² + bx + c</em>
  • <em>Trigonometric Function → f(x) = sin x or f(x) = cos x or f(x) = tan x</em>
  • <em>Logarithmic function → f(x) = ln x</em>
  • <em>Polynomial function → f(x) = axⁿ + bxⁿ⁻¹ + ...</em>

If function f : x → y , then inverse function f⁻¹ : y → x

Let us now tackle the problem!

One of the condition for a relation to be a function is that it has to pass the vertical line test. The test is done by drawing several vertical lines on the graph. If all the vertical lines drawn never intersect the curve more than one point, then this curve is said to have passed the vertical line test.

<h3>Learn more</h3>
  • Inverse of Function : brainly.com/question/9289171
  • Rate of Change : brainly.com/question/11919986
  • Graph of Function : brainly.com/question/7829758

<h3>Answer details</h3>

Grade: High School

Subject: Mathematics

Chapter: Function

Keywords: Function , Trigonometric , Linear , Quadratic

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Brums [2.3K]

Answer:

5√2

Step-by-step explanation:

<u>Finding</u><u> </u><u>distance</u><u> </u><u>:</u><u>-</u><u> </u>

  • d = √{ ( 1 -6)² + (4+1)²}
  • d = √{ -5² + 5² }
  • d = √{ 25 + 25}
  • d = √50
  • d = 5√2
4 0
3 years ago
Why does the term angle need to be defined prior to defining perpendicular lines?
igor_vitrenko [27]

Perpendicular lines<span> are two or more lines that intersect at a 90-degree angle, like the two lines drawn on this graph, and the x and y axes that orient them.</span>

<span> </span>

8 0
3 years ago
Read 2 more answers
Help !! Please I can’t find the answer
SVETLANKA909090 [29]

Answer:

\large\boxed{r^2=(x+5)^2+(y-4)^2}

Step-by-step explanation:

The equation of a circle:

(x-h)^2+(y-k)^2=r^2

<em>(h, k)</em><em> - center</em>

<em>r</em><em> - radius</em>

<em />

We have diameter endpoints.

Half the length of the diameter is the length of the radius.

The center of the diameter is the center of the circle.

The formula of a distance between two points:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Substitute the coordinates of the given points (-8, 2) and (-2, 6):

d=\sqrt{(6-2)^2+(-2-(-8))^2}=\sqrt{4^2+6^2}=\sqrt{16+36}=\sqrt{52}

The radius:

r=\dfrac{d}{2}\to r=\dfrac{\sqrt{52}}{2}

The formula of a midpoint:

\left(\dfrac{x_1+x_2}{2},\ \dfrac{y_1+y_2}{2}\right)

Substitute:

x=\dfrac{-8+(-2)}{2}=\dfrac{-10}{2}=-5\\\\y=\dfrac{2+6}{2}=\dfrac{8}{2}=4

(-5,\ 4)\to h=-5,\ k=4

Finally:

(x-(-5))^2+(y-4)^2=\left(\dfrac{\sqrt{52}}{2}\right)^2\\\\(x+5)^2+(y-4)^2=\dfrac{52}{4}\\\\(x+5)^2+(y-4)^2=13

5 0
3 years ago
Find the cos A and tan B to four decimal places. URGENT
Nikolay [14]

cos A is 0.8511 and tan B is 1.6

Step-by-step explanation:

Find the 3rd length or the hypotenuse.

<u>Pythagoras theorem</u>

hypotenuse^{2} = adjacent^{2} + opposite^{2}

hypotenuse^{2} = 8^{2} + 5^{2}

hypotenuse^{2} = 64 + 25

hypotenuse = \sqrt{89}

hypotenuse = 9.4

a) Cos A

<u>Data:</u>

Adjacent = 8

Hypotenuse = 9.4

<u>Formula:</u>

Cos (Angle) = \frac{adjacent}{hypotenuse}

Cos A =  \frac{8}{9.4}

Cos A = 0.8511

A = cos^{-1} (0.8511)

A = 31.7°

b) Tan B

<u>Data: </u>

Opposite = 8

Adjacent = 5

<u>Formula:</u>

Tan (Angle) = \frac{opposite}{adjacent}

Tan B = \frac{8}{5}

Tan B = 1.6

B =  cos^{-1} (1.6)

B = 58°

Therefore, cos A is 0.8511 and tan B is 1.6.

Keyword: cos, tan

Learn more about cos at

  • brainly.com/question/5013374
  • brainly.com/question/9532142

#LearnwithBrainly

3 0
3 years ago
F(x) = x5 + (x + 3)2 x=-1
sveticcg [70]
Hello!

You put -1 in for x

F(-1) = (-1)^5 + (-1 + 3)^2

F(-1) = -1 + (2)^2

F(-1) = -1 + 4

F(-1) = 3

The answer is 3

Hope this helps!
8 0
3 years ago
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