Question

Determine if a point is a solution of a linear equation.

1. The linear equation 2x + 4y = 10 is given. Is the point (-1, 2) a solution of the equation?
2. The linear equation x - 4y = 10 is given. Is the point (3, -2) a solution of the equation?
3. The linear equation -5x + y = -3 is given. Is the point (2, 7) a solution of the equation?

Answer 1

1. 2(-1) + 4(2) = 6 ≠ 10; (-1, 2) is NOT a solution
2. 3 - 4(-2) = 11 ≠ 10; (3,-2) is NOT a solution
3. -5(2) + 7 =-3; (2,7) IS a solution