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1 answer:
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Answer:
Step-by-step explanation:
The absolute value function negates its argument when its argument is negative. The expression 3x+12 will be negative when ...
3x +12 < 0
x +4 < 0
x < -4 . . . . . makes the absolute value function change its argument's sign
Using this fact, we can divide the domain into intervals below -4, at -4, and above -4. The above answer shows the function value in each domain interval.
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Answer:
Step-by-step explanation:
Simple, all you have to do is backwards equation. If the sum is 12. Subtract 12 by one of the numbers given.
Answer:
x = 4, -1
Step-by-step explanation:
You first have to find the value of x where the denominator is equal to 0 because this is where the function will become undefined:
- 3x - 4 = 0
Now, to factor by grouping, find 2 numbers which add to -3 and multiply to -4:
1 and -4
Then, factor by grouping:
(x + 1)(x - 4) = 0
Next, solve for the values of x:
(x + 1) = 0
x = -1
(x - 4) = 0
x = 4
Finally, this means that the function has a vertical asymptote of x = 4 and x = -1