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My name is Ann [436]
3 years ago
10

Anyone wanna help a girl out w some pre-cal? The range & one to one function is hard for me w this graph. I don’t understand

the 3 different line plots on it.

Mathematics
1 answer:
mario62 [17]3 years ago
6 0

"One-to-one" here implies that no particular y-value occurs more than once. Looking at the sloping part of the shown function, we see that this is the case.  But not the horizontal parts of the graph, where y takes on one value multiple times (y=1 and y=4).

Apply the Horizontal Line Test.  If a horiz. line drawn thru the graph intersects the graph in more than one place, the function fails this Test and is not one-to-one.  So we conclude that the function shown is NOT one-to-one.

The range of this function is a list of all possible values that the function may take on.  From the graph it is evident that the smallest y-value is almot but not quite -2, and that the largest is 4.  Thus, the range is (-2,4).

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Answer:

A. 14x14x28

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Step-by-step explanation:

The problem states that the box has square ends, so you can express volume with:

v=x^{2} y

Using the restriction stated in the problem to get another equation you can substitute in the one above:

4x+y=84\\\\

Substituting <em>y</em> whit this equation gives:

v=x^{2} (84-4x)\\\\v=84x^{2} -4x^{3}

Now find the limit of <em>x</em>:

\frac{84x^{2}-4x^{3}}{dx}=168x-12x^{2}\\\\x=\frac{168}{12}=14

Find the length:

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v=(14)^{2}(28)= 5488

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1. John’s age is three times that of his sister. When you add John’s age to his sister's age, you get 36. How old are John and h
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Step-by-step explanation:

A(S) + 12 = 3 * A(S), subtracting A(S) from both sides one gets 12 = 2 * A(S). Now dividing both sides by 2 we get A(S) = 12/2 = 6 . Therefore, the age of the sister is 6 years when her brother John is three times as old, that is 18 years.

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3 years ago
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Answer:

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Step-by-step explanation:

One group of 2 student and 1 adult tickets will go for 2×$12 +16 = $40. The number of such groups sold was ...

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There were 670 adult tickets sold.

There were 670×2 = 1340 student tickets sold.

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3 years ago
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