6.1 Solve Systems by Graphing Cont.
Name _________________________
Learning Objective: A.REI.6
A.REI.10
A.REI.11
A.REI.11
I will solve a system by graphing
I will solve a system of equations by graphing
I will solve a linear system by graphing to find the point of intersection
I will use the graphing calculator to determine the number of solutions in a given system
Solve each system of equations below and on the back by graphing them. Using the solution, find
the letter in the chart on the back that matches the solution for each problem. Write this letter
on the blank space that is labeled with the problem number. The resulting message will be the
answer to the riddle.
1.
y  3x

1

y  3 x
2.
( ____, ____ )
Solution
4.
y  x  4

y  2x  5
( ____, ____ )
x  5

y  x  3
( ____, ____ )
Solution
5.
y  2x

y  3x  3
( ____, ____ )
3.
y  x

y  3x  4
( ____, ____ )
Solution
6.
x  4

y  2
( ____, ____ )
7.
y  4  2x

y  x  4
( ____, ____ )
8.
y  5 x

y  x  4
9.
( ____, ____ )
y  2x  3

y  x  3
10.
( ____, ____ )
y  2 x  1

y  x  1
( ____, ____ )
SOLUTIONS
A (-1, -5)
B (0, 3)
C (1, 5)
D (-1, 1)
E (-3, -2)
F (10, 6)
G (-5, -8)
H (5, 10)
I (0, 0)
L (9, 4)
M (-4, -9)
N (-1, 3)
O (8, 4)
P (-1, 6)
R (-1, 6)
S (3, 6)
T (1, 2)
U (0, 4)
V (4, -2)
W (6, 1)
Question: What is it called when a cartoon dog plunges into the water?
___ ___ ___ ___ ___
5
8
7
9
10
___ ___ ___ ___ ___ ___
3
1
6
1
4
2
Y (-2, -3)