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Natali [406]
3 years ago
5

Give an example of a quadratic function has a maximum value. Explain how you know it has a maximum algebraically

Mathematics
1 answer:
tankabanditka [31]3 years ago
8 0

Answer:

y = -x²  

Step-by-step explanation:

The simplest quadratic I can think of is

y = -x²

It must have a maximum because as

x ⟶  -∞, y ⟶ -∞ and as

x ⟶ +∞, y ⟶ -∞.

There must be a maximum somewhere between the two extremes.

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Answer:

0.25 hours, or 15 minutes

Step-by-step explanation:

Ok, so the rate is 32 miles per hour, so it would take about 1/4 of a hour to go 8 miles (8/32= 0.25)

6 0
3 years ago
9 less than the quotient of a number and 4 is 12
guajiro [1.7K]
Setup Equation Based Off Merits
\frac{x}{ 4} - 9 =  12 \\  \frac{x}{ 4} = 12+ 9 \\ x =  21 \times (4)\\   x = 84
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You get tired of the sand and head up to the amusement park. You can purchase 20 ride tickets for $14 or you can purchase 30 rid
Helga [31]

Answer:

The one with the better deal would be 30 ride tickets for $22.50 this is because you pay less money for more rides.

Step-by-step explanation:

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20/14 = 1.42

Then you do the same thing to 30 and 22.50.

30/22.50 = 1.30

Last you compare which deal has less money per ride.

1.42 > 1.30

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4 years ago
If three people are with 16 sweet how many would 5 be with​
Slav-nsk [51]
9.6 but that’s not possible.
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Which of the following sets represents the domain of the function shown?
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