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2 years ago

Explain why this is NOT a function

Mathematics

1 answer:

Ne4ueva [31]2 years ago

5 0

Answer:

because it doesn't pass the verticle line test

Step-by-step explanation:

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Quadrilateral JKLM is graphed with vertices at J(-2,2), K(-1,-5), L(4,0), and M(3,7).

AveGali [126]

Answer:

<u>Question (a)</u>

Midpoint of a line segment:

$M=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)$

Given:

J = (-2, 2)
L = (4, 0)

$\implies \textsf{midpoint of }JL=\left(\dfrac{-2+4}{2},\dfrac{2+0}{2}\right)=(1,1)$

Given:

M = (3, 7)
K = (-1, -5)

$\implies \textsf{midpoint of }MK=\left(\dfrac{3-1}{2},\dfrac{7-5}{2}\right)=(1, 1)$

<u>Question (b)</u>

Find slopes (gradients) of JL and MK then compare. If the product of the slopes of JL and MK equal -1, then JL and MK are perpendicular.

$\textsf{slope }m=\dfrac{y_2-y_1}{x_2-x_1}$

Given:

J = (-2, 2)
L = (4, 0)

$\implies \textsf{slope of }JL=\dfrac{0-2}{4+2}=-\dfrac13$

Given:

M = (3, 7)
K = (-1, -5)

$\implies \textsf{slope of }MK=\dfrac{-5-7}{-1-3}=3$

$\textsf{slope of }JL \times \textsf{slope of }MK=-\dfrac13 \times3=-1$

Hence segments JL and MK are perpendicular

4 0

1 year ago

The perimeter of a semicircle is 46.26 meters. What is the semicircle's diameter?

barxatty [35]

Answer:

diameter = 18 m

Step-by-step explanation:

46.26 = 1/2π(diameter) + diameter

46.26 = 1.57d + d = 2.57d

d = 46.26/2.57 = 18 m

8 0

2 years ago

Jason needs to find the volume of the sphere shown below. Which formula should be used ?

Fiesta28 [93]

Answer:

dont see sphere

Step-by-step explanation:

3 0

2 years ago

A game board has 9 cards, and 3 say WIN. Michal picks 2 cards without replacing the first What is the probability that neither s

s2008m [1.1K]

Answer:

since there are 8 cards, and 2 say WIN, 6 of the 8 cards don't say WIN. You can express this as a ratio of 6:8 which equals 3:4, so the probability that neither says win is 75%.

Step-by-step explanation:

6 0

3 years ago

Need help on number 12....

Vaselesa [24]

Answer:

the answer is A. Elijah is correct.

5 0

3 years ago

Read 2 more answers