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dlinn [17]
3 years ago
12

Select all of the following graphs which are one to one functions

Mathematics
1 answer:
alina1380 [7]3 years ago
4 0
Given a curve in the x-y axis.

We can determine whether the curve can be the graph of a function by the "Vertical Line Test",

and we can determine whether a function is 1-1 by the "Horizontal Line Test"



The Vertical Line Test states that a curve is the graph of a function only in every single vertical line drawn in the x-y axis, cuts the curve only ONCE:

Clearly a is not the graph of a function.

b is also not a function. The line x=-2 cuts the curve more than once.

Remark: it is highly probable that the figure is not smooth enough and the vertical line x=-2 cuts the curve only at (-2, 1)

This is because the curve is very similar to the graph of \sqrt[3]{x} shifted 2 units left and 1 unit up, most probably this is what was meant

BUT  we have to deal with it as it appears, as we are not given any other information!


The horizontal line test states that a function is 1-1 only if every single horizontal line drawn in the x-y-axis cuts the curve ONLY once.

Check the purple horizontal lines:

a and b are not functions, so not 1-1,

c, e and f are 1-1.

d is not 1-1, as we can see that the horizontal line we drew cut the curve more than once.

Answer:

c, e, f
 

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allochka39001 [22]

Answer:

19.20

Step-by-step explanation:

.6 is 6%. X 32

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3 years ago
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Question 1-3
Vikki [24]

The production graph of the company is a quadratic graph

The true statements about the production graph are:

  • When producing 5,000 sets of headphones per week, the weekly earnings is $0.
  • Producing 2,500 sets of headphones per week will give the maximum amount of weekly earnings.
  • The maximum possible earnings is about $6,250 per week.
  • If production is increased from 1,500 to 2,000 sets of headphones per week, then the weekly earnings will also increase

<h3>How to interpret the model?</h3>

To interpret the model, we simply evaluate the options one after the other

<u>Producing 5000 sets weekly</u>

From the graph, we have:

(x,y) = (5000,0)

This means that a weekly production of 5,000 sets of headphones give an earning of $0.

Hence, this option is true

<u>Increased production from 3000 to 4000</u>

From the graph, the function value decreases when x increases from 3000 to 4000.

This means that this option is false

<u>Producing 2500 sets</u>

The production of 2500 sets give a maximum earning of $6250

This means that options (c) and (d) are true

<u>Increased production from 1500 to 2000</u>

From the graph, the function value increases when x increases from 1500 to 2000.

This means that this option is true

Hence, the true statements are: (a), (c), (d) and (e)

Read more about quadratic graphs at:

brainly.com/question/7988424

3 0
2 years ago
if you want to buy a shirt that cost 18.99 but you have 20% off coupon and the tax is 7%. how much does the shirt cost
dusya [7]

20% off means you pay 80% of the price so you multiply by 0.8, and 7% tax means you multiply by 1.07

Resulting cost = 18.99*0.8*1.07 = 16.26

Hope this helps let me know if im wrong!

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I Think it’s D, This is my Final Test is D Right?
ser-zykov [4K]

Answer:

Sorry you wrong, it’s actually A.

Step-by-step explanation:

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0.6 divided by 0.0024
NemiM [27]
0.6/0.0024 = 250 .6 goes into 0.0024 250 times
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