Answer:
Step-by-step explanation:
The sine function has the general equation
where
- A is the amplitude or vertical stretch
- k is the period factor
- b is the horizontal shift
- h is the vertical stretch
We start with were A=1 and h=0. We transform the function by multiplying A by 2 for a vertical stretch. A=1(2)=2. A is now 2.
We finish transforming the function by shifting it up 3 units. This means h=0 becomes 0+3=3. H is now 3.
Our new function is .
27. You can do this by thinking of all the pairs that add up to 9( 1 and 8, 2 and 7, 3 and 6, 4 and 5) and arrange them to get numbers.
Add the equations to eliminate x.
Because the first equation has x and the second has -x, added together, they cancel each other out. When you add the rest of the equation, you get 2y=22. You can then divide by 2 to get y=11.
Answer:
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Step-by-step explanation: