Question

David is solving a system of linear equations bygraphing. First, he graphed both equations on acoordinate plane. What should be his next step insolving the system of linear equations?- Find the y intercept of each line? - Find the x-intercept of each line? - Fine the location of the pint where the lines intersect- Find the measure of the angles where the lines intersect

Answer 1

This (graphic) method for solving a 2x2 linear system of equations consists always of two steps:

1. Graphing both equations on the Cartesian (coordinate) plane,

2. Find the point where the lines intersect.

(Thus, the correct answer is the third)

Comment: That point may not exist, in which case we say that the linear system has no solution.