For every polynomial function (such as quadratic functions for example), the domain is all real numbers. if the parabola is opening upwards, i.e. a > 0 , the range is y ≥ k ; if the parabola is opening downwards, i.e. a < 0 , the range is y ≤ k .
To solve you can use inverse operations.
Here are the steps to find the answer:
1. Write out the equation: -6(x-2)+3x= -3(x+3) +21
2. Distribute both sides: -6x+12+3x= -3x-9+21
3. Simplify both sides: -3x+12=-3x+12
4. This equation is true for all values, or infinity, because the equation is the same on both sides
Let me know if you need further explanation. I hope this helps.
Answer:( 3, 4)
Step-by-step explanation: :)
Answer:
2/1
Step-by-step explanation:

Answer:
b. 22, 28, 34, 40
Step-by-step explanation:
This is the only sequence with a common difference, hence the only arithmetic sequence: 22, 28, 34, 40 (common difference of 6).
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When adjacent terms of the sequence have the same <em>difference</em>, the sequence is <em>arithmetic</em>. When adjacent terms have the same <em>ratio</em>, the sequence is <em>geometric</em>. (Only a non-zero constant sequence will be both.)