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3 years ago

How can you tell if a relation is a function

Mathematics

2 answers:

AnnyKZ [126]3 years ago

7 0

Vertical line test. Also there is only one y for every x.

BaLLatris [955]3 years ago

5 0

One way to tell if a relation is a function is by using something called the vertical line test. In other words, if we can draw a vertical that passes through more than one point on a graph, then the relation does not represent a function. Another way to tell if a relation represents a function is by looking at the X coordinates of each ordered pair. If any of the ordered pairs have the same X coordinate, then the relation is not a function.

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Highschool level trigonometry!!! Need help knowing step by step how to find answer!

Goshia [24]

Answer:

$\theta \approx 82.34^\circ$

Step-by-step explanation:

Please refer to the attached diagram. (Apologies if the shading or resolution is a bit off.)

So, we want to find θ.

Since we formed a right triangle, we can use right triangle ratios.

We know the measure of the adjacent side to θ and the hypotenuse.

Therefore, we will use the cosine ratio:

$\displaystyle \cos(\theta)=\frac{\text{adjacent}}{\text{hypotenuse}}$

The adjacent side is 2 and the hypotenuse is 15. By substitution:

$\displaystyle \cos(\theta)=\frac{2}{15}$

Now, we will take the inverse cosine of both sides. So:

$\displaystyle \theta=\cos^{-1}\Big(\frac{2}{15}\Big)$

Use a calculator. Hence:

$\theta \approx 82.34^\circ$

The angle between the ground and the ladder is about 82.34°.

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3 years ago

Kalani had 3/5 pan of brownies. She sent 1/3 of

frozen [14]

I think its.......5/15=1/3

8 0

3 years ago

Use the long division method to find the result when 12x^3+25x^2+4x-112x

slavikrds [6]

Answer:

(4x + 3) • (x + 2) • (3x - 2)

Thats finding the root polynomials hope it helps a bit

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2 years ago

Which of the following is the smallest set? Becareful of spelling. Real numbers, Rational Numbers, Irrational numbers or Natural

sattari [20]

Real because it’s 12345678910

6 0

3 years ago

Please help!

Helga [31]

First you need to find how much is left in the container by finding the whole volume.
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3 0

3 years ago

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