Solving Equations Using Graphical Method - High School Mathematics - kwizNET Math/Science/English Homeschool/Afterschool/Tutoring Lessons/Worksheets/Quizzes/Trivia

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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

High School Mathematics
10.9 Solving Equations Using Graphical Method

Example:
Solve x + y = 11 and x - y = 5 using graphical method.

Solution:
Ordered pairs for the graph y = -x + 11

x 2 4 6 8

y = -x + 11 9 7 5 3

Ordered pairs (2,9) (4,7) (6,5) (8,3)

Ordered pairs for the graph y = x - 5

x 2 4 6 8

y = x - 5 -3 -1 1 3

Ordered pairs (2,-3) (4,-1) (6,1) (8,3)

The straight linesx + y = 11 and x - y = 5 are intersecting at the common point (8,3).
Therefore, the solution is (8,3).

Directions:Write at least 5 examples your own and solve the equation using a graph.