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natta225 [31]
3 years ago
6

Which set best represents the integers?

Mathematics
1 answer:
Blizzard [7]3 years ago
3 0
Of course A does because integers are positive and negative
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Last PreCalc Question, Need help with writing piecewise functions with graphs. Giving brainliest!
LekaFEV [45]

The piece-wise linear functions can be written as follows:

  • f(x) = x, x \leq -2.
  • f(x) = -x - 7, -2 < x \leq 1.
  • f(x) = 2x - 9, x > 1.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

For x equal or less than -2, the line passes through (-3,-3) and (-2,-2), hence the rule is:

f(x) = x, x \leq -2.

For x greater than -2 up to 1, the y-intercept is of -7, and the line also passes through (1,-8), hence the rule is:

f(x) = -x - 7, -2 < x \leq 1.

For x greater than 1, the function goes through (2,-5) and (3,-3), hence the slope is:

m = (-3 - (-5))(3 - 2) = 2.

The rule is:

y = 2x + b.

When x = 2, y = -5, hence:

-5 = 2(2) + b

b = -9.

Hence:

f(x) = 2x - 9, x > 1.

More can be learned about linear functions at brainly.com/question/24808124

#SPJ1

5 0
2 years ago
8<br> Simplify the expression:<br> 41 +91 + 61 =<br> 1
antiseptic1488 [7]

Answer:

194

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Add the polynomials <br><br><br> (-12x^5-7x^3+12x^2+11)+(4x^3+6x^2-6x+3)
tatuchka [14]

Answer:

-12x^5-3x^3+18x^2+14

6 0
3 years ago
If a set xy-axes has 20 grid units in each direction and the greatest value of the data to be placed on the horizontal axis is 1
Alborosie
Use 7 scale point.
132/20 = 6.6
to its better to use more than 6.6 scale. to make it easier use 7, so to avoid decimals

 
4 0
2 years ago
Two of the solutions for the equation 2x + 3y = 12 are (9, ? ) and ( ? , 4).
brilliants [131]
I got 30, I’m not sure if it’s correct or not.
4 0
2 years ago
Read 2 more answers
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