Plz Answer In your own words Explain what the vertical line test is and how it is used.

Mathematics

1 answer:

zavuch27 [327]3 years ago

7 0

Answer:

See below (I hope this helps!)

Step-by-step explanation:

The vertical line test is a test used to determine whether a relation is also a function. It is done by inserting several vertical lines that intersect the relation. If a vertical line intersects the relation at multiple point, then it is not a function. If every single inserted vertical line intersects the relation at only one point, then the relation is a function.

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Find an equation of the line that passes through the points (1 2) and perpendicular to the line 2y-x=4

Ratling [72]

Steps to find the equation
1. Find the slope
2. Insert slope into the general equation
3. Find y-intercept
4. Insert -intercept into the equation found in step 2
And you get the equation of the line

----------------------------------------------------------------------------------------------
Find the slope
----------------------------------------------------------------------------------------------
2y - x = 4

----------------------------------------------------------------------------------------------
Rewrite into the form y = mx + c
----------------------------------------------------------------------------------------------
2y = x + 4
y = 1/2 x + 2

Slope = 1/2
Perpendicular slope = -2 (negative reciprocal)

----------------------------------------------------------------------------------------------
Insert slope into the equation
----------------------------------------------------------------------------------------------
y = mx + c
y = -2x + c

----------------------------------------------------------------------------------------------
Find y-intercept
----------------------------------------------------------------------------------------------
y = -2x + c
At point (1, 2)
2 = -2(1) + c
2 = -2 + c
c = 4

----------------------------------------------------------------------------------------------
Insert y-intercept into the equation y = -2x + c
----------------------------------------------------------------------------------------------
y = -2x + 4

----------------------------------------------------------------------------------------------
Answer: y = -2x + 4
----------------------------------------------------------------------------------------------

3 0

3 years ago

PLEASE p-l-e-a-s-e help, there are 3 math questions, thank you!

Serjik [45]

You use Pythagorean theorem to solve this problem.a^2+b^2=c^2
A.53*53=45*45+28*28
2809=2025+784
2809=2809

B.85*85=13*13+84*84
7725=169+7056
7725=7725
C.85*85=36*36+77*77
7725=1296+5929
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D.65*65=16*16+61*61
4225=256+3721
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The answer is D

6 0

4 years ago

Read 2 more answers

50 POINTS!

TiliK225 [7]

Answer:

the one with the blue dot is correct.

Step-by-step explanation:

because when you dilate the triangle you increase it and in this case if you do it ABC ~ADE

4 0

3 years ago

Show on number 2. Thanks