Transcript Homework for 7-1 - Stillman Valley High School

“Finish the
whole thing;
it’ll make my
mom happy!”
Colby
p. 430 2, 6, 8, 9, 14, 17, 18, 25, 32, 34, 42, 46
HOMEWORK FOR 7-1
Solve Linear Systems by
Graphing
Objective: Graph and solve systems
of linear equations.
• A linear system consists of two or more linear
equations in the same variables.
• Example: x + 2y = 7 and 3x – 2y = 5
• A solution to a linear system in two variables is an
ordered pair that satisfies each equation in the system.
• A system that has exactly one solution is called a
consistent independent system.
•All systems in the first four sections of Chapter 7 will
be consistent independent systems; other types will
come up in section 5.
What is the solution to this system of equations?
(3, 1)
Name two ways to tell whether (2, 0) would be a solution to
this system.
Solve the linear system by graphing:
2x + 5y = 7
-x + 2y = -8
• Put into slope-intercept form or
make a table.
• Graph both lines.
• Find the intersection point.
• Check the solution algebraically.
Solve the linear system by graphing:
-x + y = 5
2x + y = 8
• Put into slope-intercept form or
make a table.
• Graph both lines.
• Find the intersection point.
• Check the solution algebraically.
SVHS is selling football tickets for a home game. The school
sold 35 tickets for $86 on the first day of the sale. Student
tickets cost $2 each and non-student tickets cost $3 each. Find
the number of student tickets and the number of non-student
tickets the gym sold.
• Name your variables.
• Write your equations.
• Solve the system by
graphing.