-500 because if you subtract then turn it into a percent
3x-2y=6
6x-4y=14
Simplifying equation II
3x-2y=7
Subtracting the simplified equation from equation1
0=-1
There is no solution.
Answer:
A
Step-by-step explanation:
We have the equation:
Take the derivative of both sides with respect to x:
Implicitly differentiate:
Solve for dy/dx:
Divide:
To find dy/dx at (2, 1), substitute 2 for x and 1 for y. So:
Hence, our answer is A.
4 = 2 * 2
Multiplying by 2 is the same a doubling.
Since 4 is 2 * 2, to multiply a number by 4, double the number twice.
Example:
What is 4 * 100?
Double 100 to get 200.
Double 200 to get 400.
Therefore, 4 * 100 = 400.
By doubling twice, we do the same as multiplying by 4.