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gulaghasi [49]
4 years ago
6

Define a function. Describe what the vertical line test is used for. Describe a real life situation that can be represented by a

function.
Mathematics
1 answer:
Marrrta [24]4 years ago
4 0
A function is a relationship with a quantity (number). For example, if you made a table, and had one side be 1 2 3 4 5 (X axis) and then the y axis (other side) be 5, 10, 15, 20, 25, the function (rule) would be y= x5. The vertical line test is used to see if a graph has a function or not, so if it creates a vertical line on a graph, it has a function.
A real life situation would be miles per hour, so, for the x axis (hours) it said 1, and for the y axis (miles) it would be 60, this means in a duration of 1 hour you went 60 miles. Well, lets say you went 2 hours driving, the miles would be 120. 
For 3 hours, it would be 180. The function here is y= x60!
If you have any questions ask me!
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An Elevator descends into a mine shaft at the rate of 5m/min. If the descend starts from 15m above the ground, how long will it
zhenek [66]
First of all, assuming that the "ground level" is 0; 

The lift is not starting from 0, so we also need to account for the extra 15 meters above the ground the lift is. 

The total distance the lift would cover in the downward direction: 15+350=365m

Now, you know that the lift covers 5 m/min

Therefore, 5x=365 (ignoring units because they can complicate things) 

x=365/5 
x=73 minutes 

Therefore, they would take 73 minutes to reach 350 m deep into the ground with a starting position 15 m above the ground. 

Hope I helped :) 
5 0
3 years ago
Which algebraic expression models the sum of 3 coins and c coins?
SpyIntel [72]
3+c i think that the answer.
7 0
3 years ago
Drag the tiles to the boxes to form correct pairs. Not all tiles will be used.
OverLord2011 [107]

Answer:

Here you go, I think

Step-by-step explanation:

5 0
3 years ago
Use De Moivre’s Theorem to compute the following: <img src="https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B%288cos%284%20%5Cpi%20%2F5%
Kipish [7]
Hello here is a solution : 

6 0
4 years ago
3/38-3/7<br> 2+1/35<br> 3/56+3/2
prohojiy [21]

Answer:

87/56

Step-by-step explanation:

Simplify the following:

3/56 + 3/2

Put 3/56 + 3/2 over the common denominator 56. 3/56 + 3/2 = 3/56 + (28×3)/56:

3/56 + (28×3)/56

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3/56 + 84/56 = (3 + 84)/56:

(3 + 84)/56

3 + 84 = 87:

Answer:  87/56

4 0
3 years ago
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