3 years ago

PLS HELP GUYS I CRY BECAUSE DON’T UNDERSTAND THIS 2 SLIDES

Mathematics

1 answer:

rewona [7]3 years ago

6 0

Answer:

12 45 785 96

Step-by-step explanation:

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Describe the piecewise function below by evaluating the function for given values of the domain

tekilochka [14]

We have a piecewise function.
Therefore, to find the function, we must evaluate each domain separately.
We have then:

For $x \leq -2$ :
The function for this domain is:
$y = -3
$

For $-2 \ \textless \ x \leq 2$ :
The function for this domain is:
$y = mx + b
$
Where,
$b = -3

 m = (y2 - y1) / (x2 - x1)

 m = (1 - (-7)) / (2 - (-2))$
$m = (1 + 7) / (2 + 2)

 m = 8/4

 m = 2$
Substituting:
$y = 2x - 3
$

For $x\ \textgreater \ 2$ :
The function for this domain is:
$y = 5$

4 0

3 years ago

The polynomial below is a perfect square trinomial of the form A^2 - 2AB + B^2

WITCHER [35]

Answer:

True

Step-by-step explanation:

$9x^2-12x +4 \\\\=(3x)^2 - 2\cdot 3x \cdot 2+2^2\\\\=(3x-2)^2$