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Name:_____________________________________ Quiz Review For question #s 1 – 4, solve the given system of linear equations and then determine if the system is consistent independent (one solution) , consistent independent(infinite solutions) or inconsistent (no solution). 1) y = 2) x – 4y = 8 3) y = 4) y = 2x – 6 x + 2y = 10 5x – 4y = – 8 4x – 6y = 12 10x – 5y = 30 For question #s 5 & 6, write the equation of the lines that are parallel and perpendicular to the given equation and that pass through the given point. 5) 3x – 4y = 7 ; (12 , 5) 6) y = ; (– 6, 2) 7) write an equation of any line that is parallel to the y-axis. 8) write an equation of any line that is parallel to the x-axis. 9) Write an equation of any line that is perpendicular to the line x = 7. 10) Write an equation of any line that is perpendicular to the line y = – 5 KEY: 1) (2,4) consistent independent 5) parallel: y = – Perpendicular: y = 2) (– 4, –3) consistent independent 4) infinite solutions; consistent Dependent 7) x = 7 (the 7 could be replaced by any # other than 0) 6) parallel: y = perpendicular: y = – 6x – 34 9) y = 4 (the 4 could be replaced by any number) 3) no solution; inconsistent 8) y = – 3 (the – 3 could be replaced by any number other than 0) 10) x = – 15 (the – 15 could be replaced by any number)