Find the domain and range of the function graphed below. Write your answers in interval notation.
1 answer:
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Answer:
The determinant is 15.
Step-by-step explanation:
You need to calculate the determinant of the given matrix.
1. Subtract column 3 multiplied by 3 from column 1 (C1=C1−(3)C3):
2. Subtract column 3 multiplied by 3 from column 2 (C2=C2−(3)C3):
3. Expand along the row 2: (See attached picture).
We get that the answer is 15. The determinant is 15.
Answer:
And for the coordinate on y we can use the function like this:
Then the vertex would be
Step-by-step explanation:
For this problem we have the following function given:
That represent a quadratic function and the general form is given by:
For this problem a =-1 , b= 50 , c=-456 and we can find the corrdinate of the vertex in x with this formula:
And replacing we got:
And for the coordinate on y we can use the function like this:
Then the vertex would be