U.5

연립방정식의 해의 개수

해가 하나인지, 없는지(평행), 무수히 많은지(같은 직선) 판단하기

난이도

보통

난이도

문제 수

예제 포함답안지 포함

@page { size: letter; margin: 0; } @media print { .ws-page + .ws-page { break-before: page; } } Daniel Math Academy \cdot Grade 8 Math Number of Solutions of a System Skill U.5 \cdot Systems of equations \cdot ★★☆ Medium Name Date Score / 8 Scan for answers Write one solution, no solution, or infinitely many solutions. Example {y = 2 x + 3 y = 2 x - 1 : no solution Think: Same slope and different y-intercepts: the lines are parallel and never meet. The same line has infinitely many solutions; different slopes have exactly one. 1 {y = - x + 2 y = - 3 x + 8 2 {2 x + y = 5 4 x + 2 y = 10 3 {y = - 4 x + 12 8 x + 2 y = 24 4 {5 x + 4 y = 1 10 x + 8 y = 2 5 {4 x + 5 y = 2 y = 5 x + 12 6 {- 2 x + y = - 3 4 x + y = - 9 7 {5 x + y = - 10 10 x + 2 y = - 21 8 {5 x + y = 4 2 x - y = - 4 Daniel Math Academy \cdot danielmath.com Worksheet # bfd436e \cdot Page 1 / 2 Daniel Math Academy \cdot Grade 8 Math Answer Key U.5 Number of Solutions of a System \cdot ★★☆ Medium 1 one solution 2 infinitely many solutions 3 infinitely many solutions 4 infinitely many solutions 5 one solution 6 one solution 7 no solution 8 one solution Daniel Math Academy \cdot danielmath.com Worksheet # bfd436e \cdot Answer Key \cdot Page 2 / 2

U. 연립방정식스킬 7개