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ANTONII [103]
3 years ago
8

Determine which of the following relations represent a function.

Mathematics
1 answer:
Darina [25.2K]3 years ago
5 0

Answer:

B

Step-by-step explanation:

In a function, each input (x) must match with one output (y). So, if there are two sets of coordinates with the same y value, that's not a function.

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If f(x) = x^2 - 3x + 1 over 2, determine f ( 4 ) .
svet-max [94.6K]
F(x)=x^2-3x+1/2, if f(4)
Substitute x with 4, to get
f(x)=x^2-3x+1/2
f(4)=4^2-3(4)+1/2
f(4)=16-12+1/2
f(4)=4+1/2
f(4)=4 1/2 or 4.5. Hope it help!
7 0
3 years ago
Create an exponential function that starts at 650 and increases by 12% us the form f(x) = p (1=r)^x
ololo11 [35]
F(x)= 650(1+.12)^x

f(x) = 650(1.12)^x
4 0
3 years ago
If y varies inversely as x, and y = 23 when x<br> 8, find y when x 4.
Virty [35]

Answer:

y = 46

Step-by-step explanation:

Given y varies inversely as x then the equation relating them is

y = \frac{k}{x} ← k is the constant of variation

To find k use the condition y = 23 when x = 8 , then

23 = \frac{k}{8} ( multiply both sides by 8 )

184 = k

y = \frac{184}{x} ← equation of variation

When x = 4 , then

y = \frac{184}{4} = 46

7 0
3 years ago
Felix had some oranges. She ate two oranges and then he gave the rest equally to her four friends. Each friend received two oran
Rina8888 [55]

Answer:

  10 oranges

Step-by-step explanation:

Since the four friends each got 2, there must have been 8 oranges to distribute. That was 2 fewer than Felix started with, so ...

  Felix started with 10 oranges.

7 0
4 years ago
Radical 18 times radical -2
melisa1 [442]

Answer:

6i

Step-by-step explanation:

First, I think you mean square root 18 and square root 2. (Let me know if thats right.)

Thus we have square root -36, which is simplified to 6i (we have to use imaginary numbers)

6 0
3 years ago
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