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3 years ago

Does the graph represent a function? Khan Academy

Mathematics

2 answers:

Ierofanga [76]3 years ago

7 0

Answer:

yes

Step-by-step explanation:

try using a vertical line, if you move the vertical line across the graph and the line touches the graph only at one point, than it means it is a function

serg [7]3 years ago

6 0

Answer:

This graph represents a function

Step-by-step explanation:

By its definition, a function is a relation or a correlation between two sets (groups) of values where every input corresponds to only one output. What this means is that every input in a function can only have one output. This characteristic results in a unique property in the graph of a function, that is, the verticle line test. The verticle line test states that when one draws a line through the graph of a function, the line can only intersect the graph in exactly one place in the function. If the line intersects the graph in more than one place, then the graph does not represent a function. In the given situation, any verticle line drawn on the graph only intersects the graph in one place, thus the graph represents a function.

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What are the sine cosine and tangent of theta=7pi/4 radians

FrozenT [24]

Answer:

see explanation

Step-by-step explanation:

$\frac{7\pi }{4}$ is in the fourth quadrant

Where sin and tan are < 0 , cos > 0

The related acute angle is 2π - $\frac{7\pi }{4}$ = $\frac{\pi }{4}$

Hence

sin([ $\frac{7\pi }{4}$ ) = - sin( $\frac{\pi }{4}$ ) = - $\frac{1}{\sqrt{2} }$ = - $\frac{\sqrt{2} }{2}$

cos( $\frac{7\pi }{4}$ ) = cos( $\frac{\pi }{4}$ ) = $\frac{\sqrt{2} }{2}$

tan( $\frac{7\pi }{4}$ = - tan( $\frac{\pi }{4}$ = - 1

6 0

3 years ago

Read 2 more answers

John wants to measure the width of a stream using the methods he has learned in geometry. He puts a stake in the ground opposite

madam [21]

The proper sequence John would use to find the measure he wants.is given as follows:

Step 1: John drives a stake opposite the tree to establish a line between two points.

Step 2: John uses a compass to walk away from the stake at a right angle.

Step 3: On the path John walks until he finds a line of sight to the tree that equals 60 degrees.

Step 4: John drives a second stake in the ground.

Step 5: John measures the distance between the two stakes.

Step 6: John multiplies the distance between the two stakes by 1.7 to find the distance.

3 0

3 years ago

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Help me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Natalka [10]

15!!! is the answer to your question:)

3 0

2 years ago

Read 2 more answers

Helppppp I have until 11:30 and it’s 10:36

forsale [732]

Answer:

911

Step-by-step explanation:

Now you can get help

7 0

3 years ago

Please help please !!!

Kobotan [32]

<h3>Answer: 12</h3>

========================================================

Explanation:

You can use the AAS (angle angle side) theorem to prove that triangle ABD is congruent to triangle CBD.

From there, we can then say that AD and DC are the same length

AD = DC

3y+6 = 5y-18

3y-5y = -18-6

-2y = -24

y = (-24)/(-2)

y = 12

6 0

2 years ago

Does the graph represent a function? Khan Academy​

Does the graph represent a function? Khan Academy