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3 years ago

I need help with 2&3

Mathematics

2 answers:

kherson [118]3 years ago

4 0

Answer:

2) no

3) yes

Step-by-step explanation:

i think. sorry if im wrong

Black_prince [1.1K]3 years ago

3 0

Answer:

2 No

3 Yes

Step-by-step explanation:

x = ky

Substitute the values of x and y to check if it's proportional. Then solve for k. If k is the same for all 4 equations, then 2 is proportional.

6 = -2k, k = 6/-2, k = -3

7 = -1k, k = 7 / -1, k = -7

8 = 0k, k = 8 / 0, k = 0

9 = k, k = 9

2 is not proportional.

Substitute the values of x and y to check if it's proportional. Then solve for k. If k is the same for all 4 equations, then 3 is proportional.

-70 = -10k, k = -70 / -10, k = 7

-56 = -8k, k = -56 / -8, k = 7

-14 = -2k, k = -14 / -2, k = 7

-7 = -k, k = -7 / -1, k = 7

3 is proportional.

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Answer:

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Step-by-step explanation:

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