Question

Use graphing to determine the solution to the system of linear equations {x = -1 { y = 3x + 1

(-2, -1)
(-1, -2)
infinitely many solutions
no solution

Answer 1

Substitute x = −1 into y = 3x + 1: y = 3(−1) + 1 = −3 + 1 = −2.
So the graphs intersect at the single point (−1, −2).