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3 years ago

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Which set of ordered pairs demonstrates a function? A (-2, -4), (-1, -2), (1, 2), (2, 4) B (-2, 4), (1, 2), (1, -2), (2, -4) C (

-2, 4), (-1, 2), (-1, 2), (-2, -4) D (-2, 4), (-1, 2), (-1, -2), (-2, -4)

2 answers:

Kaylis [27]3 years ago

5 0

Answer:

I think A, Hope it helps.

topjm [15]3 years ago

3 0

A, demonstrates function

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Theorem: The segment joining the midpoints of two sides of a triangle is parallel to the third side and half its length. A two-c

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Answer: By the slope formula.

Step-by-step explanation:

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Prove: DE║AC and DE = AC/2

Proof:

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By the distance formula,

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Statement Reason

1. The coordinate of D are (4,5) and 1. By the midpoint formula

the coordinate of E are (5,3)

2. The length of DE = √5 2. By the Distance formula

The length AC = 2√5 ⇒ Segment DE

is half the length of segment AC

3. The slope of DE = -2 and the 3. By the slope formula

slope of AC = -2

4. DE║AC 4. Slopes of parallel lines are equal

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$\huge \qquad \qquad \sf \underline{Answer}$

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