Answer:
The first one
Step-by-step explanation:
The amplitude is usually the first number (for example, in this equation, the 3). Then you also know that the right or left shift depends on the addition or subtraction sign. Usually, the subtraction sign means to the right and the addition sign means to the left.
Answer: 
Step-by-step explanation:

The slope of this line is -1 because it goes down one and to the right one
Population inferences. Step-by-step explanation:
Answer:
The positive solution is 2.4.
Step-by-step explanation:
The given functions are


It is given that




The quadratic formula:







Therefore the positive solution is 2.4.