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Sergio039 [100]
2 years ago
15

Which of the tables represent a function? (sorry for the bad photo) 15 points!

Mathematics
2 answers:
Musya8 [376]2 years ago
7 0
Answer:
table B
Step-by-step explanation:

mart [117]2 years ago
5 0

Answer:

<u>Table B</u>

Step-by-step explanation:

A function is present when x-value can only have a single y-value.

  • In <u>Table A</u>, the x-value 5 corresponds to 2 y-values : 3 and 2, hence it is not a function.
  • In <u>Table B,</u> each x-value corresponds to a single y-value, hence it is a function.
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I got C. -14x - 2
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7 0
3 years ago
Which represents the inverse of the function f(x) = 4x?
irga5000 [103]

Answer:

y = x/4

Step-by-step explanation:

First, replace f(x) with y, so it's easier to find the inverse:

y = 4x

To find the inverse of this function, you would replace all the y's with x's and all the x's with y's, and then solve for y. That would be:

x = 4y

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4 0
3 years ago
Use the figure to the right to find the value of PT. T is the midpoint of PQ.
Monica [59]

Answer:

PQ = 42

Step-by-step explanation:

Given

PT = 3x + 3

TQ = 5x - 9

Midpoint, T

Required

Determine PT

First, the value of x has to be calculated;

Since T is the midpoint, then:

PT = TQ

This implies

3x + 3 = 5x - 9

Solve for x

3x - 5x = -3 - 9

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x = -12/-2

x = 6

Length PQ can then be calculated using:

PQ = PT + TQ

PQ = 3x +3 + 5x -9

Collect Like Terms

PQ = 3x+ 5x +3  -9

PQ = 8x -6

Substitute 6 for x

PQ = 8 * 6 - 6

PQ = 48 - 6

PQ = 42

6 0
4 years ago
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