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ANEK [815]
3 years ago
9

Which one if these sets of ordered pairs is not a function ? help please

Mathematics
1 answer:
abruzzese [7]3 years ago
7 0
A function has only one y-value for each x-value. If you find a set that has an x-value used more than once, it is not a function, because that x-value is now paired with more than one y-value.

The fourth answer is the only one that has the same x-value used more than once.

Side note: Don’t worry if a y-value is used more than once. That’s totally fine. It’s all about the x-values.
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Can someone help? Thanks :D
Rufina [12.5K]

Answer:

y\leq -x+4

Step-by-step explanation:

The first thing that we can do is look at the equation of the line and then worry about the inequality afterwards.

This line has a y-intercept of 4 and a slope of -1.

This means that the equation of this line would be y=-x+4

Now that we have the equation of the line, we just need to determine which inequality sign to use.

As the shaded region is BELOW the line, we will use a less than (<) sign.

As the line is fully shaded, I can only assume that it is meant to include the line, which would mean that y\leq -x+4 would be the equation for this inequality.

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3 years ago
What are the factors of 2x2 + 3x – 54? Select two options. 2x – 9 2x – 6 2x + 6 x – 6 x + 6
andrew-mc [135]

Answer:

2x − 9 and x + 6

Step-by-step explanation:

2x² + 3x − 54

Factor using the AC method.

2 × -54 = -108

Factors of -108 that add up to 3 are +12 and -9.

Divide by 2 and reduce: 12/2 = 6/1, -9/2 = -9/2.

Therefore, the factors are x + 6 and 2x − 9.

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PLSS HELP THIS IS TIMED!!
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Answer: 34

Step-by-step explanation:

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A teacher divides her class into groups and assigns each group the task of measuring the mass of the same object three times. Th
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