Which of the following lists of ordered pairs is a function?

Mathematics

2 answers:

saul85 [17]3 years ago

8 0

Answer:

Step-by-step explanation:

A. (1, 2), (1,-2), (3, 2), (3, 4)

B. (1,6), (2, 7),(4,9), (0,5)

C. (0, 2), (2,3), (0, -2), (4,1)

D. (2, 4), (0, 2), (2, - 4), (5,3)

Theres no repeating x value.

Tom [10]3 years ago

6 0

B is the correct answer because each value of y only own one x. Hope this helps!

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On a coordinate grid what is the distance of (-2,4) and (5,4)

Alex

Answer:

the distance is 7 units

Step-by-step explanation:

Since the we calculate the distance between (-2,4) and (5,4) and those points have the same y=4 coordinate then they are both part of a horizontal line.

The distance is found by looking at the x-axis.

From -2 to 5 so is form -2 until 0 is (2 )+ (5 )more = 7

3 0

2 years ago

How to solve #12 can't seem to figure it out after spending 20 mins on it

Ilia_Sergeevich [38]

The area of one of the triangular lateral faces is

$\dfrac{401.48-166.28}6=39.2$

You're told that the slant height, which is the same as the height of the triangular face, is 9.8, so you have

$39.2=\dfrac12\times9.8\times b$

where $b$ is the length of the base of the triangle, which is also the same as the side length of the base of the pyramid. So

$b=8$