Solving Systems of Equations Graphically
What's the definition?
A solution of such a system is the ordered pair that is a solution to the equations
What is the definition?
It's solved by solving for one of the variables in the equation, substituting the equations into the second equation.
What is the definition?
The graph of an inequality in two variables is the set of points that represents all solutions to the inequality.
What's the definition?
system of linear inequalities is a set of equations of linear inequalities containing the same variables.
Y=-2/3x-2
Y=-8/3x+4
(+3, -4)
Y=-5/3x+3
Y=1/3x-3
(3,-2)
Y1 = 2x – 2
Y2 = 4x – 4
(1, 0)
8x+5y≥100
y ≥− + 20
y ≤ x – 1 and y < –2x + 1
Graph the first inequality y ≤ x − 1.
What's my first and last name?
Marayah Morrison
Y=4x+3
Y=-x-2
(-1,-1)
y = 2x + 4
y = x + 7
(3, 10); On day the 3rd, each girl has sold 10 candy bars
Which linear inequality is represented by the graph?
a. y < 2/3 x + 3
b. y > 2/3 x + 3
c. y > 2/3 x + 3
d. y < 2/3 x + 3
c
–2x -y < -1
4x + 2y ≤-6
y > –2x + 1 and y ≤ -2x -3
Y=-1/2x-1
Y=1/4x-4
(4,-3)
Y=-1
Y=-5/2x+4
(2,-1)