cant understand your language can you translate in English
Answer:
The set of solutions is
Step-by-step explanation:
The augmented matrix of the system is .
We will use rows operations for find the echelon form of the matrix.
- In row 2 we subtract from row 1. (R2- 2/3R1) and we obtain the matrix
- We multiply the row 1 by .
Now we solve for the unknown variables:
The system has a free variable, the the system has infinite solutions and the set of solutions is
Answer: b. 1/2.
Step-by-step explanation: 3/7 in decimal form is 0.42, which is close to 1/2 (0.5) than to 0.
So you just plot the points on a graph and draw a line to connect them