Match the expressions to their solutions or equivalents. 1. the gcf of 28 and 60. - 2. + 3. - ÷ 0 4. solution of 0.5x = -1. -1 5. solution of m = 0. 4 6. -4 + 5 - 7. -2 ÷ 4 -4 8. not a solution of -4 < x. -2

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

Simplify (4x^2 - 8xy + 2y^2) - (9x^2 - 4xy - 7y^2) a. -5x^2 + 4xy + 9y^2 b. -5x^2 - 4xy + 9y^2 c. -5x^2 + 12xy + 4y^2 d. -5x^2 - 4xy - 5y^2

The graph of a curve that passes the vertical line test is a: