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3 years ago

Why does the vertical line test determine if the graph represents a function?

Mathematics

2 answers:

Irina-Kira [14]3 years ago

6 0

<span>the vertical line test is a visual way to determine if a curve is a graph of a function or not.</span>

Georgia [21]3 years ago

5 0

A function can only have one output per input. For an xy function, this means that for every x, there can only be one y. If you do the vertical line test and it crosses a line more then once, then that means that the graph has more than one y value for a single x value, meaning it is not a function.

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Please help. Thank you

Inessa [10]

Given:

$PQRS\sim TUVW$

In the given figure, PS=x, RS=35, UV=20, VW=25 and TW=15

To find:

The scale factor from PQRS to TUVW.

Solution:

We have,

$PQRS\sim TUVW$

We know that the corresponding sides of similar figures are proportional. The scale factor is the ratio of one side of image and corresponding side of preimage.

The scale factor is:

$k=\dfrac{VW}{RS}$

$k=\dfrac{25}{35}$

$k=\dfrac{5}{7}$

Therefore, the scale factor from PQRS to TUVW is $k=\dfrac{5}{7}$ .

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3 years ago

A right triangle has side 10 and hypotenuse 26. Use the Pythagorean Theorem

alekssr [168]

Answer:

Step-by-step explanation:

The Pythagorean Theorem states that $a^{2} +b^{2} =c^{2}$ where a and b are the legs in a right triangle and c is the hypotenuse. Therefore, just substitute the values a = 10 and c = 26 into the equation to get b = 24

Hope this helps :)

3 0

2 years ago

Write the following sets in the tabular form A<br><img src="https://tex.z-dn.net/?f=%28x.2x%20%2B%203%20%3D%2011%29" id="TexForm

MrRissso [65]

2x=11-3
2x=8
Simplify 8/2
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2 years ago

It would be amazing if you can help me with this !

denis23 [38]

Answer:

Step-by-step explanation:

Blank 1 = " x "

Blank 2 = " 3 "

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2 years ago

A jar contains a mixture of 10 black balls, 8 red balls, and 2 white balls all the same size. What is the probability of drawing

gayaneshka [121]

Red 8/20 white 2/20 both 50% or 10/20

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2 years ago