The row-echelon form of the augmented matrix of a system of equations is given. Find the solution of the system. ​

Part a: select all of the ordered pairs that are located on the graph of the equation. part b: does the graph of the equation represent a function? select all correct answers for part a and one answer for part b.

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.

Which graph represents the same relation is the sa which graph represents the same relation as the set {(-3-2)}