ANSWER
The solution is
<u>EXPLANATION</u>
We have
and
Let us substitute equation (1) in to equation (2). This gives us,
We rewrite this as a quadratic equation as the highest degree is 2.
This implies that
we factor to obtain,
This means,
We substitute this values into any of the above equations, preferably equation (1)
When, ,
When, ,
The solution is
Answer: -4/5 or -0.8
Explanation: Because it is the answer
C. (1.6 , -0.8)
Walkthrough:
The X line is horizontal, and the Y line is vertical. You always want to use the X line before Y
Example: (X , Y) (1.6 , -0.8)
The answer is 7. the work is shown in the picture provided.